A method for constructing foundations using inorganic fishpond sludge

Abstract

This invention discloses a method for inorganic sludge treatment in fishponds, comprising the following steps: First, after harvesting fish, the water in the fishpond is drained. Multiple samples of the sludge at the bottom of the pond are taken, and then 96% potassium ferrate is added to each sample. After stirring for 20 minutes, the organic matter content in the sludge is tested. The mud slurry is then discharged into a pumping tank. After completing the preparatory work, a high-pressure water pump is used to flush the sludge while adding clean water. A pumping tank is then constructed in a low-lying area nearby to ensure all the mud slurry flows into it. The mud slurry is then screened. A 5.5KW pump with a head of 18 meters and a flow rate of 65m³ is placed in the pumping tank. 3 / h of sewage and sludge submersible pump; this invention patent can inorganicate sludge, dewater a portion of the inorganicated sludge, use the dried mud cake to build pond foundation blanks, and then make a portion of the inorganicated sludge into mixed mortar to solidify the pond foundation concrete structure, thus completing the pond foundation construction. It can also dewater and reduce the volume of fishpond sludge to obtain planting soil.

Description

Technical Field

[0001] This invention relates to the field of foundation construction technology, specifically a foundation construction method for inorganic fishpond silt. Background Technology

[0002] In existing agricultural and fishery production, pond dredging is a pain point and a difficult problem in aquaculture. Due to the continuous accumulation of feces, excrement, remains, uneaten feed, and fertilizers from aquaculture animals, as well as the continuous deposition of surface alluvial deposits, the deposited organic matter is fermented and decomposed by microorganisms to form a large amount of humus, which mixes with the soil on the surface of the pond bottom, forming a certain thickness of silt at the bottom of the pond.

[0003] In the past, there were generally two methods for dredging fish ponds: one is to dry the silt at the bottom of the pond and then use an excavator or bulldozer to dredge it to the edge of the fish pond to achieve the purpose of dredging and repairing the pond embankment; the other is to use a dredging pump to pump the silt slurry to the farmland or open space near the fish pond to dry before planting.

[0004] Method 1 can only be carried out during the dry season. After the pond bottom is dried, mechanical dredging is carried out, which takes a long time, generally 1-2 months. Especially in rainy weather, it may take even longer. In addition, the silt is not solidified after being dug onto the pond embankment, and the pond embankment will collapse after being soaked in water for a long time during the later aquaculture process. This method cannot be used for sites with thick silt or soft pond embankments.

[0005] Method 2: This method can only be used when there is farmland or open space near the fishpond, which is very restrictive. In addition, the high water content during dredging may cause river pollution and blockage. Furthermore, dredging a large amount of silt from the bottom of the pond can easily make the pond too deep, affecting production output and also causing the pond foundation to collapse.

[0006] To address this problem, a foundation construction method using inorganic fishpond silt is proposed. Summary of the Invention

[0007] The purpose of this invention is to provide a method for constructing a foundation using inorganic silt from fishponds, which solves the problems of long processing time, easy collapse of the pond foundation, and great site limitations in previous fishpond dredging processes.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a method for constructing a foundation using inorganic fishpond sludge, comprising the following steps: Step 1: Draining: After the fish are caught, drain the water from the pond, take multiple samples of the silt at the bottom of the pond, add 96% potassium ferrate to each sample, stir for 20 minutes, and then test the organic matter in the silt. Step 2: Draining mud and water into the pumping tank: After completing the preparatory work, use a high-pressure water pump to flush away the silt while adding clean water, and then make a pumping tank in the low-lying area next to it so that all the mud and water flows into the pumping tank. Step 3: Slurry screening: Place a 5.5KW sewage and waste submersible pump with a head of 18 meters and a flow rate of 65m³ / h in the slurry pumping tank. Use the sewage and waste submersible pump to pump the slurry onto a 1230 type drum screen for screening. Stone particles larger than 3mm are screened out for later use. The screened slurry water is discharged into two inorganic mixing tanks. Step 4: Sludge Inorganization: The mud slurry is first discharged into an inorganic mixing tank, and 96% potassium ferrate is added while stirring at a speed of 100 r / min, and stirred for 20 minutes to complete the sludge inorganicization. After filling the first bucket with mud, the mud water is discharged into another inorganic mixing bucket. Then, while stirring at 100 r / min, 96% potassium ferrate is added and stirred for 20 minutes to complete the inorganic treatment of the sludge. Step 5: Constructing the pond base blank: After the inorganic treatment is completed, 80% of the inorganic mud slurry is pumped to the MBP250 / 1250 type non-installation chamber filter press through a 22KW horizontal slurry pump for filtration and pressing. The solidified mud cake with a water content of less than 40% after filtration is sent to the edge of the pond by a conveyor belt. Together with the stones and debris larger than 3mm screened out in Step 3, it is backfilled into the pond base by a small excavator and compacted to construct the pond base blank. Step 6: Concrete structure curing: The remaining 20% ​​of inorganic slurry is discharged onto a DYQ1000WP1 belt filter press. The visible water is removed by its thickening section to obtain a thick slurry with a water content of 70-80%. The thick slurry is discharged into a high-speed pulping machine, where 5% lime milk, 20% cement, 20% coarse sand, and 0.1% glass fiber are added to make a mixed mortar. The mixed mortar is then laid onto the pond base blank prepared in Step 5 using a small excavator. A small amount of manual smoothing is then combined to complete the concrete structure curing of the pond base blank. Step 7: Solidified mud cake for planting: After the concrete foundation of the pond base is solidified, if there is still a lot of silt in the fishpond, the planting soil can be processed. The front-end steps are the same as steps 2 and 3 of process one. The sieved mud slurry is directly pumped to the MBP250 / 1250 type non-installation chamber filter press by a 22KW horizontal slurry pump for filtration and pressing. The solidified mud cake with a water content of less than 40% can be directly transported to the adjacent farmland for planting or transported to other planting sites. It can also be used to make organic soil.

[0009] Preferably, in step 1, the organic matter content is required to be ≤55%, and the average amount of potassium ferrate is calculated.

[0010] Preferably, in step 2, the ratio of added clean water to sludge is 1:1. When the ratio of clean water to sludge reaches 1:1, the sludge and clean water can be combined by stirring to achieve a uniform sludge viscosity. At the same time, controlling the ratio of clean water to 1:1 can improve the efficiency of subsequent filter press.

[0011] Preferably, in step 2, the inlet of the slurry pumping tank is separated from large debris such as sticks, tree debris, and plastic bags by a grid with 3x3cm holes. The separated plastic products can be directly sent to the waste treatment plant for processing, reducing the pollution of the soil around the fishpond by plastic products.

[0012] Preferably, in step 3, the sewage submersible pump has a cutting and shredding function, which prevents the submersible pump from jamming when impurities in the sludge are pumped out.

[0013] Preferably, in step 4, the number of inorganic mixing tanks used is not limited, and two or more inorganic mixing tanks can be used alternately to improve the efficiency of sludge inorganicization.

[0014] Preferably, in step 5, the clean water filtered by the chamber filter press can be directly discharged into the pond for further flushing of silt.

[0015] Preferably, in step 5, the solidified mud cake with a moisture content of less than 40% and the stones and debris larger than 3mm are mixed and dried before backfilling during the construction of the pond base blank to ensure that the moisture does not affect the viscosity of the mortar.

[0016] Preferably, in step 7, the clean water filtered by the chamber filter press can also be directly discharged into the pond for further flushing of silt.

[0017] Preferably, in step 7, when the solidified mud cake is transported to the planting site or used to prepare organic soil, the remaining wood-like impurities can be crushed and added to the mixture to increase the nutrients in the soil.

[0018] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention patent can inorganicate silt, dewater a portion of the inorganicated silt, use the dried mud cake to construct the pond base blank, and then use a portion of the inorganicated silt to make mixed mortar to solidify the pond base concrete structure, thus completing the construction of the pond base. It can also dewater and reduce the volume of fishpond silt to obtain planting soil. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the foundation construction process of the present invention; Figure 2 This is a schematic diagram of the soil utilization process of the present invention. Detailed Implementation

[0020] The present invention will now be described in more detail by way of examples. These examples are merely illustrative and do not limit the scope of the present invention in any way.

[0021] This invention provides a technical solution: a method for constructing a foundation using inorganic fishpond sludge, comprising the following steps: Step 1: Draining: After the fish are caught, drain the water from the pond, take multiple samples of the silt at the bottom of the pond, add 96% potassium ferrate to each sample, stir for 20 minutes, and then test the organic matter in the silt. Step 2: Draining mud and water into the pumping tank: After completing the preparatory work, use a high-pressure water pump to flush away the silt while adding clean water, and then make a pumping tank in the low-lying area next to it so that all the mud and water flows into the pumping tank. Step 3: Slurry screening: Place a 5.5KW sewage and waste submersible pump with a head of 18 meters and a flow rate of 65m³ / h in the slurry pumping tank. Use the sewage and waste submersible pump to pump the slurry onto a 1230 type drum screen for screening. Stone particles larger than 3mm are screened out for later use. The screened slurry water is discharged into two inorganic mixing tanks. Step 4: Sludge Inorganization: The mud slurry is first discharged into an inorganic mixing tank, and 96% potassium ferrate is added while stirring at a speed of 100 r / min, and stirred for 20 minutes to complete the sludge inorganicization. After filling the first bucket with mud, the mud water is discharged into another inorganic mixing bucket. Then, while stirring at 100 r / min, 96% potassium ferrate is added and stirred for 20 minutes to complete the inorganic treatment of the sludge. Step 5: Constructing the pond base blank: After the inorganic treatment is completed, 80% of the inorganic mud slurry is pumped to the MBP250 / 1250 type non-installation chamber filter press through a 22KW horizontal slurry pump for filtration and pressing. The solidified mud cake with a water content of less than 40% after filtration is sent to the edge of the pond by a conveyor belt. Together with the stones and debris larger than 3mm screened out in Step 3, it is backfilled into the pond base by a small excavator and compacted to construct the pond base blank. Step 6: Concrete structure curing: The remaining 20% ​​of inorganic slurry is discharged onto a DYQ1000WP1 belt filter press. The visible water is removed by its thickening section to obtain a thick slurry with a water content of 70-80%. The thick slurry is discharged into a high-speed pulping machine, where 5% lime milk, 20% cement, 20% coarse sand, and 0.1% glass fiber are added to make a mixed mortar. The mixed mortar is then laid onto the pond base blank prepared in Step 5 using a small excavator. A small amount of manual smoothing is then combined to complete the concrete structure curing of the pond base blank. Step 7: Solidified mud cake for planting: After the concrete foundation of the pond base is solidified, if there is still a lot of silt in the fishpond, the planting soil can be processed. The front-end steps are the same as steps 2 and 3 of process one. The sieved mud slurry is directly pumped to the MBP250 / 1250 type non-installation chamber filter press by a 22KW horizontal slurry pump for filtration and pressing. The solidified mud cake with a water content of less than 40% can be directly transported to the adjacent farmland for planting or transported to other planting sites. It can also be used to make organic soil.

[0022] Example 1:

[0023] First, the pond is drained after the fish are caught. Multiple samples of the silt at the bottom are taken, and 96% potassium ferrate is added to each sample. After stirring for 20 minutes, the organic matter in the silt is tested. The mud slurry is then discharged into a pumping tank. After completing the preparatory work, a high-pressure water pump is used to flush the silt while adding clean water. A pumping tank is then constructed in a low-lying area to ensure all the mud slurry flows into it. Next, the mud slurry is screened. A 5.5KW submersible sewage pump with a head of 18 meters and a flow rate of 65m³ / h is placed in the pumping tank. The mud slurry is pumped onto a 1230-type drum screen for screening. Stone particles larger than 3mm are screened out. The screened mud slurry is discharged into two inorganic mixing tanks for subsequent sludge inorganication. The mud slurry is first discharged into one tank, where 96% potassium ferrate is added while stirring at 100 rpm for 20 minutes to complete the sludge inorganication. After the first tank is filled, the mud slurry is discharged into the other tank, and again, 96% potassium ferrate is added while stirring at 100 rpm for 20 minutes to complete the sludge inorganication. The two tanks can be used alternately. Afterwards, the pond embankment blank is constructed. Once inorganication is complete, 80% of the inorganic slurry is pumped out using a 22KW horizontal slurry pump. The sludge is filtered and pressed using an MBP250 / 1250 type self-installation chamber filter press. After filtration, the solidified mud cake with a moisture content of less than 40% is conveyed to the pond edge via a conveyor belt. Together with the stones larger than 3mm screened out in step 3, it is backfilled into the pond embankment using a small excavator and compacted to form the pond embankment blank. After the concrete structure solidifies, the remaining 20% ​​of inorganic sludge is discharged to a DYQ1000WP1 type belt filter press. The thickening section removes visible water, resulting in a thick sludge with a moisture content of 70-80%. This thick sludge is then discharged into a high-speed pulping machine, where 5% lime slurry, 20% cement, 20% coarse sand, and 0.1% glass fiber are added to create a mixed mortar. Using a small excavator, the mixed mortar is laid onto the pond base blank prepared in step 5, and then a small amount of manual smoothing is done to complete the concrete structure solidification of the pond base blank. Finally, the solidified mud cake is used for planting. After the pond base concrete structure is solidified and the foundation is built, if there is still a lot of silt in the fish pond, the planting soil can be processed. The front-end steps are the same as steps 2 and 3 of process 1. The sieved mud slurry is directly pumped by a 22KW horizontal slurry pump to an MBP250 / 1250 type non-installation chamber filter press for filtration and pressing. The solidified mud cake with a water content of less than 40% can be directly transported to the adjacent farmland for planting or transported to other planting sites, or it can be used to make organic soil.

[0024] Example 2:

[0025] In Example 1, the following steps are added: In step 1, the organic matter content is required to be ≤55%, and the average amount of potassium ferrate used is calculated.

[0026] In step 2, the ratio of added clean water to silt is 1:1. When the ratio of clean water to silt reaches 1:1, the silt and clean water can be combined by stirring to achieve a uniform silt viscosity. At the same time, controlling the ratio of clean water to 1:1 can improve the efficiency of subsequent filter press. The inlet of the slurry pumping tank is separated by a grid with 3x3cm holes to separate large debris such as wooden sticks, tree debris, and plastic bags. The separated plastic products can be directly sent to the waste treatment plant for processing, reducing the pollution of the soil around the fishpond by plastic products.

[0027] In step 3, the sewage and sludge submersible pump has a cutting and crushing function, which prevents the submersible pump from jamming when impurities in the sludge are pumped out.

[0028] First, the pond is drained after the fish are caught. Multiple samples of the silt at the bottom are taken, and then 96% potassium ferrate is added to each sample. After stirring for 20 minutes, the organic matter content in the silt is tested. The organic matter content must be ≤55%. The average amount of potassium ferrate used is calculated. The mud slurry is then discharged into a pumping tank. After completing the preparatory work, a high-pressure water pump is used to flush the silt while adding clean water. A pumping tank is then constructed in a low-lying area nearby to ensure all the mud slurry flows into it. The ratio of clean water to silt is 1:1. When the ratio reaches 1:1, the silt and water are stirred to achieve a uniform consistency. Meanwhile, the ratio of clean water to solid water is controlled at 1:1 to improve the efficiency of subsequent filter press. A 3x3cm mesh grid at the inlet of the slurry pumping tank separates large debris such as sticks, tree branches, and plastic bags. The separated plastic items can be directly sent to a waste treatment plant for processing, reducing pollution of the soil around the fishpond. Next, the slurry is screened. A 5.5KW, 18-meter head, 65m³ / h submersible sewage pump is placed in the pumping tank to pump the slurry onto a 1230-type drum screen for screening. Stone particles larger than 3mm are screened out for later use. The screened slurry water is discharged into two inorganic mixing tanks. The submersible sewage pump carries... It has a cutting and crushing function to prevent submersible pump jamming when impurities in the mud are extracted. Afterwards, the sludge is inorganicated, and the mud slurry is first discharged into an inorganic mixing tank. While stirring at 100 rpm, 96% potassium ferrate is added, and stirring is continued for 20 minutes to complete the inorganication of the sludge. After the first tank is filled with sludge, the mud slurry is discharged into another inorganic mixing tank, and again, while stirring at 100 rpm, 96% potassium ferrate is added, and stirring is continued for 20 minutes to complete the inorganication of the sludge. The two tanks can be used alternately. Afterwards, the pond embankment blank is constructed. Once inorganication is complete, 80% of the inorganic sludge is passed through... A 22KW horizontal slurry pump draws the slurry into an MBP250 / 1250 type self-installation chamber filter press for filtration and pressing. The solidified mud cake with a moisture content of less than 40% after filtration is conveyed to the pond edge via a conveyor belt. Together with the stones and debris larger than 3mm screened out in step 3, it is backfilled into the pond base by a small excavator and compacted to form the pond base blank. After the concrete structure solidifies, the remaining 20% ​​of inorganic slurry is discharged to a DYQ1000WP1 type belt filter press. The visible water is removed by its thickening section to obtain a thick slurry with a moisture content of 70-80%. The thick slurry is discharged into a high-speed pulping machine, where 5% lime milk, 20% cement, 20% coarse sand, and 0% glass fiber are added.A 1% mixture is prepared into a mortar. This mortar is then laid onto the prepared pond foundation blank (built in step 5) using a small excavator. A small amount of manual smoothing is then applied to complete the concrete structure solidification of the pond foundation blank. Finally, the solidified mud cake is used for planting. After the pond foundation concrete structure is solidified, if there is still a lot of silt in the fishpond, planting soil can be processed. The initial steps are the same as steps 2 and 3 in process one. The resulting sieved mud slurry is directly pumped through a 22KW horizontal slurry pump to an MBP250 / 1250 type self-installing chamber filter press for filtration and pressing. The solidified mud cake with a moisture content of less than 40% can be directly transported to nearby farmland for planting or transported to other planting sites. It can also be used to make organic soil.

[0029] Example 3:

[0030] In Example 2, the following additional steps are added: In step 4, there is no limit to the number of inorganic mixing tanks used. Two or more inorganic mixing tanks can be used alternately to improve the efficiency of sludge inorganicization.

[0031] In step 5, the clean water from the filter press of the chamber filter press can be directly discharged into the pond for further flushing of silt. During the construction of the pond base blank, the solidified mud cake with a water content of less than 40% and the stones and debris larger than 3mm are mixed and dried before backfilling to ensure that the moisture does not affect the viscosity of the mortar.

[0032] First, the pond is drained after the fish are caught. Multiple samples of the silt at the bottom are taken, and then 96% potassium ferrate is added to each sample. After stirring for 20 minutes, the organic matter content in the silt is tested. The organic matter content must be ≤55%. The average amount of potassium ferrate used is calculated. The mud slurry is then discharged into a pumping tank. After completing the preparatory work, a high-pressure water pump is used to flush the silt while adding clean water. A pumping tank is then constructed in a low-lying area nearby to ensure all the mud slurry flows into it. The ratio of clean water to silt added is 1:1. 1. When the ratio of clean water to silt reaches 1:1, stirring can combine the silt and clean water to achieve a uniform silt viscosity. Maintaining a 1:1 ratio of clean water also improves the efficiency of subsequent filtration. The inlet of the slurry pumping tank uses a 3x3cm mesh grid to separate large debris such as sticks, tree branches, and plastic bags. The separated plastic items can be directly sent to a waste treatment plant for processing, reducing pollution of the soil around the fishpond. The slurry is then screened and placed in the pumping tank with a power of 5.A 5KW, 18-meter head, 65m³ / h submersible sewage pump is used to pump sludge onto a 1230-type drum screen for screening. Stone particles larger than 3mm are screened out for later use. The screened sludge is then discharged into two inorganic mixing tanks. The submersible pump has a cutting and crushing function to prevent impurities from causing the pump to jam during extraction. The sludge is then inorganicated, and the sludge is first discharged into one inorganic mixing tank. While stirring at 100r / min, 96% potassium ferrate is added, and stirring is continued for 20 minutes to complete the inorganication of the sludge. After the first tank is filled with sludge, the sludge is discharged into the other inorganic mixing tank. Inside the mixing tank, 96% potassium ferrate is added while stirring at 100 rpm for 20 minutes to complete the sludge inorganization. The two tanks can be used alternately, and the number of mixing tanks used is unlimited; more than two tanks can be used alternately to improve the efficiency of sludge inorganization. Then, the pond embankment is constructed. After inorganization, 80% of the inorganized sludge is pumped to an MBP250 / 1250 type non-installation chamber filter press for filtration and pressing using a 22KW horizontal slurry pump. The solidified mud cake with a moisture content of less than 40% after filtration is conveyed to the pond edge, along with the stones larger than 3mm screened out in step 3. The mixed materials were backfilled into the pond embankment using a small excavator and compacted to form the embankment blank. The clear water filtered by the filter press (without installation) can be directly discharged into the pond for further flushing of silt. During the embankment blank construction process, solidified mud cakes with a moisture content of less than 40% and stones larger than 3mm were mixed, dried, and then backfilled to ensure that moisture did not affect the mortar's consistency. After the concrete structure solidified, the remaining 20% ​​of the inorganic slurry was discharged onto a DYQ1000WP1 belt filter press. Its thickening section removed visible water, resulting in a thick slurry with a moisture content of 70-80%. This thick slurry was then discharged into a high-speed pulping machine, where 5% lime slurry, 20% cement, 20% coarse sand, and glass fiber were added. A 0.1% mixture is prepared into a mortar. This mortar is then laid onto the prepared pond foundation blank (built in step 5) using a small excavator. A small amount of manual smoothing is then applied to complete the concrete structure solidification of the pond foundation blank. Finally, the solidified mud cake is used for planting. After the pond foundation concrete structure is solidified, if there is still a lot of silt in the fishpond, planting soil can be processed. The initial steps are the same as steps 2 and 3 in process one. The screened mud slurry is directly pumped through a 22KW horizontal slurry pump to an MBP250 / 1250 type self-installing chamber filter press for filtration and pressing. The solidified mud cake with a moisture content of less than 40% can be directly transported to nearby farmland for planting or transported to other planting sites. It can also be used to make organic soil.

[0033] Example 4:

[0034] In Example 3, the following steps are added: In step 7, the clean water from the filter press of the chamber filter press can also be directly discharged into the pond for further flushing of silt. The solidified mud cake can be transported to the planting site or used to prepare organic soil. The wood impurities that are separated can be crushed and added to the mixture to increase the nutrients in the soil.

[0035] First, the pond is drained after the fish are caught. Multiple samples of the silt at the bottom are taken, and then 96% potassium ferrate is added to each sample. After stirring for 20 minutes, the organic matter content in the silt is tested. The organic matter content must be ≤55%. The average amount of potassium ferrate used is calculated. The mud slurry is then discharged into a pumping tank. After completing the preparatory work, a high-pressure water pump is used to flush the silt while adding clean water. A pumping tank is then constructed in a low-lying area nearby to ensure all the mud slurry flows into it. The ratio of clean water to silt added is 1:1. 1. When the ratio of clean water to silt reaches 1:1, stirring can combine the silt and clean water to achieve a uniform silt viscosity. Maintaining a 1:1 ratio of clean water also improves the efficiency of subsequent filtration. The inlet of the slurry pumping tank uses a 3x3cm mesh grid to separate large debris such as sticks, tree branches, and plastic bags. The separated plastic items can be directly sent to a waste treatment plant for processing, reducing pollution of the soil around the fishpond. The slurry is then screened and placed in the pumping tank with a power of 5.A 5KW, 18-meter head, 65m³ / h submersible sewage pump is used to pump sludge onto a 1230-type drum screen for screening. Stone particles larger than 3mm are screened out for later use. The screened sludge is then discharged into two inorganic mixing tanks. The submersible pump has a cutting and crushing function to prevent impurities from causing the pump to jam during extraction. The sludge is then inorganicated. The sludge is first discharged into one inorganic mixing tank, where it is stirred at 100r / min while adding 96% potassium ferrate for 20 minutes to complete the inorganication process. After the first tank is filled, the sludge is discharged into the other inorganic mixing tank, and the mixture is stirred at 100r / min. Add 96% potassium ferrate while mixing and stir for 20 minutes to complete the sludge inorganization. The two mixing drums can be used alternately; the number of mixing drums used is unlimited, and more than two can be used alternately to improve the efficiency of sludge inorganization. Then, construct the pond embankment blank. After inorganization, 80% of the inorganized sludge is pumped to an MBP250 / 1250 type non-installation chamber filter press for filtration and pressing. The solidified mud cake with a water content of less than 40% after filtration is conveyed to the pond edge and, together with the stones larger than 3mm screened out in step 3, backfilled into the pond embankment using a small excavator and compacted to construct the pond embankment blank. The clear water filtered by the non-installation chamber filter press can be directly discharged into the pond. The material is used for further flushing of silt. During the construction of the pond embankment blank, the solidified mud cake with a moisture content of less than 40% and stones larger than 3mm are mixed and dried before backfilling to ensure that the moisture does not affect the viscosity of the mortar. After the concrete structure solidifies, the remaining 20% ​​of inorganic mud slurry is discharged to a DYQ1000WP1 belt filter press to remove visible water in its thickening section, resulting in a thick mud slurry with a moisture content of 70-80%. This thick mud slurry is then discharged into a high-speed pulping machine, where 5% lime milk, 20% cement, 20% coarse sand, and 0.1% glass fiber are added to create a mixed mortar. The mixed mortar is then laid onto the pond embankment blank constructed in step 5 using a small excavator, combined with a small amount of manual smoothing, to complete the solidification of the concrete structure of the pond embankment blank. Finally, the solidified mud... For planting with cake soil, after the concrete foundation of the pond is solidified, if there is still a lot of silt in the pond, the planting soil can be processed. The initial steps are the same as steps 2 and 3 of process one. The sieved mud slurry is directly pumped through a 22KW horizontal slurry pump to an MBP250 / 1250 type self-installing chamber filter press for filtration and pressing. The solidified mud cake with a moisture content of less than 40% can be directly transported to adjacent farmland for planting or transported to other planting sites. It can also be used to make organic soil. The clear water filtered by the self-installing chamber filter press can also be directly discharged into the pond for further flushing of silt. When the solidified mud cake is transported to the planting site or used to prepare organic soil, the wood-like impurities that are filtered out can be crushed and added to the mixture to increase the nutrients in the soil.

[0036] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A method for constructing a foundation using inorganic fishpond sludge, characterized in that: Includes the following steps: Step 1: Pumping water: After the fish are caught, the water in the pond is pumped out, and multiple samples of the silt at the bottom of the pond are taken. Then, 96% potassium ferrate is added to each sample, and the mixture is stirred for 20 minutes before testing the organic matter in the silt. The organic matter content is required to be ≤55%, and the average amount of potassium ferrate used is calculated. Step 2: Draining mud and water into the pumping tank: After completing the preparatory work, use a high-pressure water pump to flush the sludge while adding clean water. Then, build a pumping tank in a low-lying area next to the sludge, so that all the mud and water flows into the pumping tank. The ratio of clean water to sludge is 1:

1. By stirring, the sludge and clean water are combined to achieve a uniform sludge viscosity, which can improve the efficiency of subsequent filter pressing. The inlet of the pumping tank is separated from wooden sticks, tree debris, and plastic bags by a 3x3cm mesh grid. The separated plastic products are sent directly to the waste treatment plant for treatment to reduce the pollution of the soil around the fishpond by plastic products. Step 3: Slurry screening: A 5.5KW sewage submersible pump with a head of 18 meters and a flow rate of 65m³ / h is placed in the slurry pumping tank. The sewage submersible pump pumps the slurry to a 1230 type drum screen for screening. Stone particles larger than 3mm are screened out for later use. The screened slurry water is discharged into two inorganic mixing tanks. The sewage submersible pump has a cutting and crushing function, which prevents the submersible pump from jamming when impurities in the slurry are pumped out. Step 4: Sludge Inorganization: The sludge water is first discharged into an inorganic mixing tank, and 96% potassium ferrate is added while stirring at a speed of 100 r / min. The mixture is stirred for 20 minutes to complete the sludge inorganicization. After filling the first bucket with mud, the mud water is discharged into another inorganic mixing bucket. Then, while stirring at 100 r / min, 96% potassium ferrate is added and stirred for 20 minutes to complete the inorganic treatment of the sludge. Two inorganic mixing tanks are used alternately to improve the efficiency of sludge inorganication. Step 5: Constructing the pond embankment blank: After the inorganic treatment is completed, 80% of the inorganic slurry is pumped to the MBP250 / 1250 type no-installation chamber filter press for filtration and pressing through a 22KW horizontal slurry pump. The solidified mud cake with a water content of less than 40% after filtration is sent to the edge of the pond by a conveyor belt. Together with the stones and debris larger than 3mm screened out in Step 3, it is backfilled into the pond embankment by a small excavator and compacted to construct the pond embankment blank. The clear water filtered by the no-installation chamber filter press is directly discharged into the pond for continued flushing of silt. Step 6: Concrete structure curing: The remaining 20% ​​of inorganic slurry is discharged onto a DYQ1000WP1 belt filter press. The visible water is removed by its thickening section to obtain a thick slurry with a water content of 70-80%. The thick slurry is discharged into a high-speed pulping machine, where 5% lime milk, 20% cement, 20% coarse sand, and 0.1% glass fiber are added to make a mixed mortar. The mixed mortar is then laid onto the pond base blank prepared in Step 5 using a small excavator. A small amount of manual smoothing is then combined to complete the concrete structure curing of the pond base blank. Step 7: Use of solidified mud cake for planting: After the concrete structure of the pond base is solidified, if there is still a lot of silt in the fishpond, the planting soil can be processed. The initial steps are the same as in Steps 2 and 3. The sieved mud slurry is directly pumped to the MBP250 / 1250 type non-installation chamber filter press by a 22KW horizontal slurry pump for filtration and pressing. The solidified mud cake with a water content of less than 40% is directly transported to the adjacent farmland for planting or transported to other planting sites. It can also be used to make organic soil.

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