45results about "Sludge processing" patented technology

The application provides a river sludge resource recycling method. First, the river sludge is pumped out by using physical equipment, then the organic matter of the river sludge is decomposed by using solid fermentation of microorganisms combined with bentonite, and heavy metals are degraded, so that the effect of eliminating odor and harmless treatment is achieved. Then, a vacuum dewatering device is arranged in the fermentation box, so that the sludge is gradually dewatered in the fermentation process, and the water content is reduced to below 10%, finally, a cementing liquid containing calcium ions is sprayed on the sludge, and urease-producing microorganisms are induced to generate calcium carbonate precipitation (MICP), so that the sludge forms a certain strength of the raw soil, which can be used on the roadbed. In this process, the bentonite can play the roles of adsorbing bacterial flora, enhancing the MICP effect, fixing heavy metals and assisting fermentation. The method is low in cost, green and environmentally friendly, solves the problem that the sludge is difficult to be applied for a long time, has certain economic value, and is a disposal method worthy of promotion.

The utility model relates to the field of sludge dewatering, and discloses sludge deep dewatering pretreatment equipment which comprises a tank body fixedly installed among a plurality of supporting frames, one side of the tank body is communicated with a sludge feeding pipe, the center position of the bottom end of the tank body is communicated with a sludge discharging pipe, and a booster pump is fixedly installed at the top end of the supporting frame on one side of the tank body. One end of the booster pump is communicated with one end of the chemical inlet pipe, a chemical distribution component is arranged in the tank body along the vertical direction, the other end of the booster pump is communicated with one end of the chemical distribution component through a pipeline, and the equipment disclosed by the utility model is convenient for promoting the quicker and more sufficient contact of added chemicals and sludge, so that the pretreatment efficiency of the sludge is improved.

The utility model belongs to the technical field of sludge treatment, and discloses a device for converting bottom mud of an aquaculture pond by utilizing microorganisms to reduce the content of organic carbon, which comprises a treatment bin, the treatment bin is a circular barrel, a rectangular opening is formed in the upper position of the side face of the treatment bin, and two supporting legs are fixedly installed on the side face of the treatment bin. And a fixed mounting cylinder is arranged at the position, corresponding to the rectangular opening, of the side face of the treatment bin, the section of the mounting cylinder is a rectangular cylinder with a concentric-square-shaped cross section, and a movable filter plate is arranged in the mounting cylinder. According to the sludge treatment device disclosed by the utility model, rapid reaction is carried out under the actions of stirring, aeration and fungicide, the rotating cover is moved after the reaction is carried out for 24-48 hours, the rotating cover is moved to the position of the rectangular opening in the side surface of the treatment bin, the rotating disc is moved after the reaction, the rotating disc extrudes sludge, and water is discharged through the connecting pipe; after the sludge is extruded to the position of a second clamping block, the second clamping block is opened, and a mud cake is taken out, so that the production efficiency is improved.

The invention belongs to the field of comprehensive treatment of oily sludge, and relates to a reduction treatment method of oily sludge. Comprising the following steps: step 1, mixing a first part of oily sludge to be treated with an organic loose material, inoculating a thermophilic compound bacteria solution into the mixture, feeding the mixture into a high-temperature microbiological treatment unit, introducing air, stirring and heating to a target fermentation temperature, and maintaining the target fermentation temperature; step 2, gradually adding a second part of to-be-treated oily sludge into the high-temperature microbiological treatment unit under heating and stirring conditions, and carrying out a first high-temperature aerobic fermentation reaction to obtain a high-temperature aerobic fermentation material; step 3, outputting a part of the material subjected to high-temperature aerobic fermentation, continuously adding a third part of oily sludge to be treated into the high-temperature microbiological treatment unit, and carrying out high-temperature aerobic fermentation reaction again; and step 4, repeating the step 3 until the reduction treatment of the oily sludge is completed. Compared with the prior art, the biological treatment method is lower in cost and higher in decrement rate.

A system for on-line monitoring of a supercritical water oxidation (SCWO) process, the system including an SCWO reactor, a feedstock supply line which supplies a feedstock to the SCWO reactor, an oxidant supply line which supplies an oxidant to the SCWO reactor, at least one sensor which measures at least one parameter of the feedstock and the oxidant, and a controller which determines a Chemical Oxygen Demand (COD) and a Heating Value (HV) of the feedstock based on the at least one parameter, such that the controller adjusts the amount of the oxidant supplied to the SCWO reactor based upon the COD and the HV of the feedstock.

The utility model belongs to the technical field of environmental governance, and particularly relates to a sludge aerobic fermentation drying feeding lifting device which comprises a lifting hopper, blocking pieces, an opening and closing piece, a driving piece and a beating piece, the blocking pieces are symmetrically arranged at the bottom of the lifting hopper, the blocking pieces are fixedly connected to the opening and closing piece, and the opening and closing piece is fixedly connected to the lifting hopper. According to the designed sludge aerobic fermentation drying feeding lifting device, when sludge is lifted and fed, the bottom of the lifting hopper is blocked through the blocking piece and the opening and closing piece, so that when the sludge is discharged out of the lifting hopper, the discharging speed of the sludge can be controlled, the sludge in the lifting hopper is prevented from being discharged at a time, and the sludge discharging efficiency is improved. The sludge in the lifting hopper can be conveniently and rapidly emptied through the matched design of the driving part and the beating part, and it is ensured that the situation that too much sludge is left, and the next-time sludge loading amount is affected is avoided.

The utility model belongs to the technical field of sludge treatment, and particularly relates to an automatic discharging device for sludge aerobic fermentation drying, which comprises a stock bin, a feed port, a discharge port, a material distributing piece and a lifting fixing piece, the feed port is fixedly connected onto the stock bin, and the discharge port is fixedly connected onto the stock bin on the opposite side of the feed port. According to the automatic discharging device for sludge aerobic fermentation and drying, through the matched design of the feeding port, the discharging port and the lifting fixing piece, the stock bin can act between fermentation equipment and a belt conveying belt which are arranged at different intervals, sludge materials are prevented from directly impacting the belt conveying belt during conveying, and the conveying efficiency is improved. By means of the cooperative design of the material distributing piece, the sludge materials in the fermentation equipment can be stored and temporarily stored, the amount of the sludge materials discharged from the belt conveying belt each time can be equal, and the problem that energy is wasted due to no-load of the belt conveying belt is avoided.

A waste treatment system 100 for performing a hydrothermal treatment of wastes includes a hydrothermal treatment device 10 for performing the hydrothermal treatment by bringing steam into contact with the wastes, a storage facility 8, 9 for storing a fuel produced from a reactant of the hydrothermal treatment, and a heat recovery steam generator 18 for generating the steam to be supplied to the hydrothermal treatment device 10. The heat recovery steam generator 18 is configured to generate the steam by using a combustion energy generated by combustion of the fuel stored in the storage facility 8, 9.

According to the sludge reduction treatment process, a sedimentation tank is communicated with an adjusting tank, and the adjusting tank is communicated with an anaerobic tank, an anoxic tank and an aerobic tank and then communicated with a secondary sedimentation tank and a disinfection tank; the device is characterized in that the secondary sedimentation tank is communicated with the sludge concentration tank; one path of the sludge concentration tank is communicated with the filter-pressing dehydration device; the filter-pressing dehydration device is communicated with the regulating tank and the discharge port; supernate of the sludge thickening tank flows into the regulating tank; filtered water of the filter-pressing dehydration device flows into the adjusting tank; the sludge concentration tank is provided with a micro-nano aeration device, a microbial active enzyme MP16 is put into the sludge concentration tank, the MP16 enzyme and the efficient micro-nano aeration device are put into the sludge concentration tank to carry out biochemical reaction and accelerate the reaction rate, and 80%-90% of organic sludge can be degraded only in 4-6 hours; upper-layer treated clear water flows back into the adjusting tank to be continuously subjected to water treatment (can be used as a carbon source to be supplemented into the adjusting tank), and other inorganic sludge is conveyed to be subjected to filter pressing dehydration and then can be transported outwards for disposal.

The present application relates to sludge drying treatment technical field, and its purpose is to provide a cloth turnover machine. The cloth turnover machine can effectively degrade organic matter and other pollutants in sludge. The cloth turnover machine comprises a machine body, a cloth mechanism, a turnover mechanism, a bacteria agent discharging mechanism, an aeration mechanism and a walking mechanism; the cloth mechanism is arranged on the machine body and is used for arranging wet sludge in a drying area and putting auxiliary materials into the wet sludge; the turnover mechanism is arranged on the machine body and is located below the cloth mechanism, and is used for turning over the wet sludge; the bacteria agent discharging mechanism and the aeration mechanism are arranged on the turnover mechanism, the bacteria agent discharging mechanism can discharge bacteria agent, and the aeration mechanism can aerate during turnover; the walking mechanism is arranged on the machine body and is located on both sides of the turnover mechanism, and can drive the turnover mechanism to move in the drying area. The present application solves the problems that the existing cloth turnover machine has poor degradation effect on organic matter and other pollutants in sludge, low humification degree and cannot be directly utilized after treating sludge.

The utility model belongs to the technical field of dewatered sludge treatment, and particularly discloses a dewatered sludge mixing and conditioning device which comprises a mixing bin, and a mixing component is arranged in the mixing bin; the mixing assembly is used for mixing a sludge conditioner and dewatered sludge and comprises two rotating shafts, and the outer walls of the two rotating shafts are fixedly connected with a plurality of stirring paddles; two rotating shafts are arranged in the mixing bin, two stirring paddles are arranged on the rotating shafts, two liquid inlet pipes are arranged in the mixing bin, the bottoms of the two liquid inlet pipes are communicated with connecting pipes, and the bottoms of the two connecting pipes are communicated with a plurality of nozzles. Dehydrated sludge and a sludge conditioner in the mixing bin are intensively stirred, the sludge can form a complex flowing path in the bin from different angles through the double-rotating-shaft design, stirring dead angles are avoided, meanwhile, the sludge conditioner reaches the multiple nozzles through the liquid inlet pipe and the connecting pipe and is evenly sprayed out, and the stirring effect is improved under continuous stirring of the stirring paddle.

The present invention relates to methods for treating waters, sediments and / or sludges using alkaline earth metal peroxide, especially calcium peroxide, and cable bacteria, to a kit comprising a composition comprising at least one alkaline earth metal peroxide, and cable bacteria, and to uses of a composition comprising at least one alkaline earth metal peroxide, especially in combination with cable bacteria.

The utility model relates to the technical field of sludge concentration, in particular to a sludge concentration device, which is provided with a discharge mechanism and an extrusion mechanism, so that moisture in discharged sludge can be secondarily separated in the sludge concentration process, and the sludge concentration effect is improved. Comprising a storage mechanism; the device further comprises an overflow mechanism, a stirring mechanism, an aeration mechanism, a discharging mechanism and an extrusion mechanism, the overflow mechanism is installed on the material storage mechanism, the stirring mechanism is installed on the material storage mechanism, the aeration mechanism is installed on the material storage mechanism, the discharging mechanism is installed at the lower end of the material storage mechanism, and the extrusion mechanism is installed on the discharging mechanism; the material storage mechanism is used for storing materials, the overflow mechanism is used for overflowing, the stirring mechanism is used for stirring, the aeration mechanism is used for aerating, the discharging mechanism is used for discharging materials, and the extruding mechanism is used for extruding.

A multi-functional slurry processing system (“VARCOR”) and associated methods is disclosed. The present examples provide a multi-functional slurry processing system incorporating systems and methods for separating liquid and solid components in slurries. In particular the systems and methods described herein produce clean water, dried solids, and potential concentration of desirable constituents with a boiling point lower than water. At least one example of the multi-functional slurry processing system provides a self-contained processing facility configured to efficiently convert high water-content slurries into its constituent solid and liquid fractions and subsequently generating and collecting clean water and concentrating desirable constituents with a boiling point lower than water. The multi-functional slurry processing system advantageously applies thermodynamic principles in a system which may include various combinations of a preheater, a degassing unit, a dryer, a steam filter, a compressor, a concentrating tower, and a condensation unit.

A biofilm membrane bioreactor system with a bioreactor, at least two membrane plates positioned within the bioreactor, and a plurality of biofilm carriers suspended within the wastewater in the bioreactor. The bioreactor has at least one inlet and at least one outlet. The at least two membrane plates are configured to filter the wastewater to generate permeate and may be formed of a ceramic material. Each of the at least two membrane plates are separated from adjacent membrane plates by a membrane gap that is at least two times larger than a smallest dimension of one of the biofilm carriers.

To prevent separation of foreign matter by a separation part from being hindered when the separation part separates the foreign matter and a removal part removes a liquid.SOLUTION: A separation and removal apparatus includes a separation unit configured to separate a foreign substance from a liquid containing the foreign substance in a state in which the foreign substance partially contains moisture and release the foreign substance while separating the foreign substance, a holding unit disposed outside the separation unit and configured to hold the foreign substance released by the separation unit and discharge the held foreign substance, and a removal unit configured to store the foreign substance discharged from the holding unit and remove the moisture from the stored foreign substance.SELECTED DRAWING: Figure 1

A process for treating WWTP sludge comprising the steps of, feeding the WWTP sludge at 1-5%TS to an anaerobic digester (82), operating the anaerobic digester (82) at 4-6% TS and providing at least a portion of the digestate of the digester for recuperative thickening by way of a side stream thickener in a side stream loop. A polymeric thickening aid (D) is added to the at least a portion of the digestate in the side stream loop, wherein the polymeric thickening aid (D) is added at 3 kg / MT-TSS or less.

The invention belongs to the technical field of oily sludge degradation microbiology, and relates to a thermophilic bacterium for degrading petroleum hydrocarbon, an application of the thermophilic bacterium and an oily sludge degradation method. The thermophilic bacterium capable of degrading the petroleum hydrocarbon is Pseudomonas kunmingensis, and the preservation number of the thermophilic bacterium is CGMCC (China General Microbiological Culture Collection Center) No.28743. The invention further discloses a preparation method of the thermophilic bacterium capable of degrading the petroleum hydrocarbon. The thermophilic bacteria for degrading the petroleum hydrocarbon are extracted from the oily sludge, the extraction cost is low, and the method is simple and feasible. The thermophilic bacteria for degrading petroleum hydrocarbon are prepared into bacterial liquid with OD600 of 1, 50 mL of the bacterial liquid is sprayed to each kg of oily sludge, high-temperature aerobic fermentation is performed on the oily sludge under the aerobic conditions that the pH is 7-7.5 and the temperature is 50-70 DEG C, the oil removal rate reaches 41.0% within 7 days, the degradation effect is remarkable, and theoretical reference is provided for shortening the period of treating the oily sludge through a biological method and improving the treatment efficiency.

Provided is a processing apparatus for processing water-containing organic matters. The processing apparatus includes: a processing tank configured to store the water-containing organic matters; a stirring unit configured to stir the water-containing organic matters; a heater configured to heat the processing tank; an exhaust unit configured to exhaust gas from the processing tank at a rate from 1 m3 / min to 300 m3 / min; and an ion gas supply unit configured to supply ion gas into the processing tank with the exhaustion of the gas from the interior of the processing tank, the ion gas having an ion density of at least 2,000,000 pcs / cc, wherein the heater heats an interior of the processing tank while the stirring unit stirs the water-containing organic matters, and the ion gas is supplied into the processing tank according to the exhaustion by the exhaust unit, whereby processing the water-containing organic matters.

The invention discloses foundation pit sludge treatment equipment for house building construction and a treatment method of the foundation pit sludge treatment equipment, and relates to the technical field of desilting, the foundation pit sludge treatment equipment comprises a crawler machine and further comprises a baffle rotationally installed on the front portion of the crawler machine and a cleaning assembly installed on the baffle, and two hydraulic rods are installed between the baffle and the crawler machine; the cleaning assembly is composed of two supports fixedly installed on the baffle, two side plates fixed to the corresponding supports through fixing flanges and an outer cylinder fixedly installed between the two side plates. The cleaning assembly further comprises a mud shoveling module, a material conveying module, a feeding module and a plurality of rolling modules. The method has the advantages that the sludge is treated in a rapid treatment and backfilling mode, the transportation cost can be effectively reduced, meanwhile, backfilling is conducted in a tiling mode, air is sprayed into the sludge in the backfilling process, the porosity in the sludge and the air contact area are increased, the biological treatment efficiency is improved, and the building construction period is shortened.

The present invention addresses the problem of preventing separation of foreign matter by a separation unit from being hindered when the separation unit separates the foreign matter and a removal unit removes liquid. The separation and removal device includes: a separation unit that separates foreign matter from a liquid containing the foreign matter in a state in which the foreign matter partially contains moisture, and discharges the foreign matter while performing the separation; a holding unit which is disposed on the outside of the separation unit, holds the foreign matter discharged by the separation unit, and discharges the held foreign matter; and a removal unit that accommodates the foreign matter discharged from the holding unit and removes the moisture from the accommodated foreign matter.

A plant for aquaculture, for farming of fish or other aquatic species, comprising a closed or semi-closed tank, at least one inlet for water to the tank and an outlet for water from the tank. The plant is distinguished in that the outlet comprises two pipes, wherein an outer pipe is arranged outside an inner pipe,the outer pipe extends from a bottom of the tank up to an outer pipe upper end, and the outer pipe comprises openings distributed along the immersed part of the outer pipe,the inner pipe extends from the bottom of the tank up to an inner pipe upper end, and the inner pipe comprises an outlet opening at the inner pipe upper end and / or outlet openings at elevation below the inner pipe upper end, anda main outlet from the tank is arranged in the tank bottom in position inside the inner pipe.

The invention discloses a petroleum-containing sludge microbial degradation method and degradation device based on a two-step process, and the method specifically comprises the following steps: (1) treating petroleum-containing sludge in a first petroleum degrading bacteria stirring tank for 10-40 days to obtain granular petroleum-containing sludge; (2) exposing the degraded granular sludge to the sun, raking and crushing the granular sludge into powder, and increasing the specific surface area; (3) carrying out secondary microbiological treatment on the powdery sludge through a second stirring tank, and detecting the petroleum hydrocarbon content every three days until the petroleum hydrocarbon content is reduced to two thousandths of the national standard; and (4) air-drying and discharging the sludge reaching the standard. According to the method, chemical reagents are not needed, efficient and green sludge treatment is achieved through the synergistic effect of two times of biodegradation and physical crushing, the petroleum hydrocarbon removal rate is remarkably increased, the cost is reduced, and secondary pollution is avoided.

A process of treatment of carbonaceous material, such as wastewater sludge or organic waste, includes performing a thermal treatment of the carbonaceous material, thereby providing thermally treated carbonaceous material, cooling the thermally treated carbonaceous material, thereby providing cooled carbonaceous material, the cooling being performed using a vacuum cooling procedure, and performing a post-treatment of the cooled carbonaceous material, and at least one carbonaceous material degassing.

The application discloses a coupling type sludge reduction device and a use method thereof, and relates to the technical field of sludge treatment, comprising a first treatment tank, a second treatment tank, an ozone gas supply device and an oxygen gas supply device, wherein the first treatment tank and the second treatment tank are of the same structure. In the application, the overflow liquid with a pH value greater than 6.5 is stored through the adjusting mechanism of the first treatment tank, and when the sludge enters the second treatment tank through the sludge transmission mechanism, the overflow liquid is introduced into the fifth connecting pipe by the water pump to improve the pH of the sludge to a suitable range. In combination with the pH sensors in the first treatment tank, the second treatment tank and the conduit for real-time monitoring, the alkaline adjusting agent can be supplemented in time through the liquid adding pipe, so that the ozone oxidation reaction in the first treatment tank and the reaction under the oxygen environment in the second treatment tank are both carried out in the suitable pH range, the problem that the activity of aerobic microorganisms is inhibited due to the excessively high acidity is effectively solved, and the stability of the sludge reduction effect is improved.

To provide a fermentation raw material capable of allowing aerobic fermentation to quickly proceed and promoting an effective use of resources, by a simple operation alone of adding a prescribed amount of a specific material to sewage sludge.SOLUTION: The sewage sludge fermentation raw material according to the present invention for use in aerobic fermentation of sludge, includes sewage sludge and coffee grounds, in which the coffee grounds are included therein in an amount of 52 pts.mass or more and 200 pts.mass or less relative to 100 pts.mass of the sewage sludge. The present invention also provides a sewage sludge processing method that uses a sewage sludge fermentation raw material including 52 pts.mass or more and 200 pts.mass or less of coffee grounds relative to 100 pts.mass of the sewage sludge.SELECTED DRAWING: Figure 1

The utility model relates to the technical field of cleaning equipment, in particular to an efficient sludge stabilizing treatment device which comprises a tank body, a conveying belt and a feeding mechanism, the tank body is of a rectangular cavity structure with an opening in the upper portion, and a first cavity A, a second cavity B, a third cavity C, a fourth cavity D, a fifth cavity E and a sixth cavity F are arranged in the tank body; a conveying belt is arranged in the first chamber A, and a feeding mechanism is arranged at the upper part of the conveying belt; the feeding mechanism comprises a supporting plate, a supporting rod, a feeding groove, a feeding box and a screening net, the feeding box is arranged on the upper portion of the supporting plate, the screening net is arranged in the feeding box, a cavity structure is formed between the screening net and an inner cavity of the feeding box, and a first discharging opening is formed in the side portion of the feeding box. The utility model is used for solving the problems that a large amount of sediments appear in the tank body and the cleaning is tedious because most sludge easily enters the sedimentation tank and the aeration tank when the existing equipment is used for treating the sludge.

The utility model provides sludge treatment equipment, which belongs to the field of sludge treatment and comprises a liquefied sludge tank, an oxygen control acidification reactor, a high-density sedimentation tank and an electrochemical treater which are sequentially connected, and the electrochemical treater is communicated with the liquefied sludge tank. The utility model aims to solve the problem that the sludge treatment in the prior art cannot effectively kill pathogenic bacteria and parasitic ova at the same time to achieve reduction, stabilization and innocent treatment. The method has the technical effects that heavy metal pollution is effectively removed, pathogenic bacteria and parasitic ova are killed, and reduction, stabilization and innocent treatment are achieved.

The invention discloses an efficient oily sludge stacking process, and belongs to the technical field of oily sludge treatment. The process comprises the following steps: S1, adding auxiliary materials into oily sludge, and uniformly mixing a mixture of the oily sludge and the auxiliary materials to obtain an oil sludge mixture; s2, adding a nutrient solution into the oil sludge mixture, adjusting the water content of the mixed material, and piling to obtain an oil sludge mixture pile body; and S3, adding a compound microbial agent into the oil sludge mixture pile body, and then putting the oil sludge mixture pile body into a reaction device for microbial degradation treatment. The low-cost co-metabolism matrix organic auxiliary material is introduced, the nutrient solution is matched to stimulate microbial metabolism, then a high-concentration and high-activity functional flora ecological system is formed in an oil sludge mixture pile body, the composite microbial agent is introduced to strengthen the piling effect, the oil content and the water content of the oil-containing sludge are reduced, and the sludge treatment effect is improved. Therefore, harmlessness and reduction of the oily sludge are realized.

To provide a fermentation raw material that can accelerate aerobic fermentation and to thereby contribute to effective use of resources, only by a simple operation of adding a specific amount of a specific material to sewage sludge.SOLUTION: A sewage sludge fermentation raw material for aerobic fermentation includes sewage sludge and oil cake. The oil cake has a pH of 5 or more and 9 or less. The raw material contains 10 or more and 130 or less parts by mass of oil cake per 100 parts by mass of sewage sludge. The oil cake is one or more selected from the group consisting of rapeseed oil cake, soybean oil cake, sesame oil cake, and cottonseed oil cake. The sewage sludge fermentation raw material of the invention further includes an aeration aid.SELECTED DRAWING: Figure 1