Sewage treatment agent

Abstract

The invention discloses a sewage treatment agent, and relates to the technical field of sewage treatment. The flocculating agent is used for accelerating sedimentation and solid-liquid separation of suspended solids in water, the scale inhibition dispersing agent can form a stable complex with metal ions such as calcium and magnesium in water through the special chemical property of the scale inhibition dispersing agent, the ions are prevented from being combined with other anions to form insoluble precipitates, and the water quality is improved. Small particles in the filler can intercept and adsorb suspended solids, impurities and other pollutants in the sewage, so that the impurities in the sewage are effectively removed, and the water quality is improved; the bactericide can inhibit the growth of bacteria, algae and microorganisms in water and prevent the formation of microbial slime to cause harm to a water treatment system, and the deoxidant can remove dissolved oxygen in water and is beneficial to preventing eutrophication of a water body and reducing the formation of sediments in the water body, so that the occurrence of an anoxic state is effectively prevented.

Description

Technical Field

[0001] The invention relates to the technical field of sewage treatment, and in particular to a sewage treatment agent. Background Art

[0002] Wastewater treatment: The process of purifying wastewater to meet the water quality requirements for discharge into a water body or reuse. Wastewater treatment is widely used in various fields such as construction, agriculture, transportation, energy, petrochemicals, environmental protection, urban landscape, medical treatment, catering, etc., and is increasingly entering the daily lives of ordinary people.

[0003] For example, CN115057499A discloses a municipal sewage treatment agent and a preparation method thereof, which uses bentonite and hydrochloric acid to prepare activated white clay, combined with diatomaceous earth to give full play to the adsorption performance, uses magnesium sulfate and ferric sulfate to obtain a composite iron-magnesium inorganic flocculant, and combines organic flocculants and other ingredients to prepare a sewage treatment agent, which achieves the treatment of municipal sewage and reduces the content of COD and suspended matter in the sewage. However, the sewage treatment agent prepared by this method is greatly affected by temperature during the adsorption process, and the adsorption effect at different temperatures is different, thereby affecting the sewage treatment effect.

[0004] In the existing technology for treating urban sewage, the sewage treatment agent produced therefrom has the following problems: the sewage treatment agent has poor dispersion performance, which affects the sewage treatment effect; the sewage treatment agent is greatly affected by temperature, which affects the sewage treatment effect. For this reason, we propose a sewage treatment agent. Summary of the invention

[0005] The purpose of the present invention is to solve the problems mentioned in the above background technology, and the present invention provides a sewage treatment agent.

[0006] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions:

[0007] A sewage treatment agent is prepared from the following raw material components in parts by weight: 10-15 parts of flocculant, 2-5 parts of heavy metal capture agent, 2-5 parts of bactericide, 2-5 parts of scale inhibitor and dispersant, 2-5 parts of deoxidizer, 15-20 parts of filter material and 45-55 parts of filler.

[0008] Furthermore, the agent is made of the following raw material components in parts by weight: 10 parts of flocculant, 5 parts of heavy metal capture agent, 5 parts of bactericide, 5 parts of scale inhibitor and dispersant, 5 parts of deoxidizer, 20 parts of filter material, and 55 parts of filler.

[0009] Furthermore, the agent is made of the following raw material components in parts by weight: 12.5 parts of flocculant, 3.5 parts of heavy metal capture agent, 3.5 parts of bactericide, 3.5 parts of scale inhibitor and dispersant, 3.5 parts of deoxidizer, 17.5 parts of filter material, and 50 parts of filler.

[0010] Furthermore, the agent is made of the following raw material components in parts by weight: 15 parts of flocculant, 2 parts of heavy metal capture agent, 2 parts of bactericide, 2 parts of scale inhibitor and dispersant, 2 parts of deoxidizer, 15 parts of filter material, and 50 parts of filler.

[0011] Furthermore, the flocculant is made of the following raw material components in parts by weight: polyferric sulfate (PFS): 31 parts, cassava starch: 16 parts, activated carbon: 11 parts, polyvinyl pyrrolidone (PVP): 8 parts, and nano zinc oxide: 15 parts.

[0012] Furthermore, the heavy metal capture agent is made of the following raw material components in parts by weight: 20 parts of cross-linked starch and 30 parts of acrylamide.

[0013] Furthermore, the filter material is made of the following raw material components in parts by weight: 10 parts of quartz sand, 15 parts of fiber ball filter material and 17 parts of garnet sand.

[0014] Furthermore, the deoxidizer is made of the following raw material components in parts by weight: 10 parts of iron powder, 12 parts of silicate, 4 parts of pH regulator and 18 parts of oxidant.

[0015] Furthermore, the filler is one of soft fiber filler, semi-soft filler, combined fiber filler, elastic three-dimensional filler, suspended filler, and obliquely suspended porous suspended filler.

[0016] A method for preparing a sewage treatment agent, comprising any of the above-mentioned sewage treatment agents, comprises the following steps:

[0017] Preparation of a pharmaceutical body, comprising:

[0018] 1) Prepare a flocculant by mixing polyferric sulfate, cassava starch, activated carbon, polyvinyl pyrrolidone and nano zinc oxide in a mixer, and place the mixture in an application bag;

[0019] 2) Prepare heavy metal capture agent by graft copolymerizing cross-linked starch with acrylamide to obtain heavy metal capture agent;

[0020] 3) Prepare filter material: put quartz sand, fiber ball filter material and garnet sand in a mixer and stir and mix;

[0021] 4) Prepare a deoxidizer by placing iron powder, silicate, pH regulator and oxidant in a mixer and mixing them;

[0022] 5) tableting, placing the raw materials prepared above into a tablet press for tableting;

[0023] 6) Place the materials in application bags respectively, and lay out fillers, flocculants, heavy metal capture agents, bactericides, scale inhibitors and dispersants, deoxidizers and filter materials in sequence;

[0024] Filling, placing the prepared medicine body in the protective shell;

[0025] Installation: Positioning frames are installed at the upper and lower ends of the protective shell;

[0026] Place the assembled reagent body, protective shell and positioning frame into the sewage to be treated.

[0027] The beneficial effects of the present invention are as follows:

[0028] 1. The flocculant of the present invention is used to accelerate the sedimentation of suspended matter and solid-liquid separation in water. The heavy metal capture agent can react strongly with various heavy metal ions in water to form stable insoluble precipitates. The scale inhibitor dispersant can form stable complexes with metal ions such as calcium and magnesium in water through its special chemical properties to prevent these ions from combining with other anions to form insoluble precipitates. The filter material can filter impurities and intercept suspended matter, impurities and other particulate matter in water through its physical structure, thereby reducing the turbidity of water and improving water quality. The tiny particles in the filler can intercept and adsorb suspended matter, impurities and other pollutants in sewage, thereby effectively removing impurities in sewage and improving water quality.

[0029] 2. The bactericide of the present invention can inhibit the growth of algae and microorganisms in water, prevent the formation of microbial sludge, and thus cause harm to the water treatment system. The deoxidizer removes dissolved oxygen in the water, helps prevent eutrophication of the water body, reduces the formation of water sediments, and thus effectively prevents the occurrence of hypoxia.

[0030] 3. The present invention can protect the internal medicine body under the action of the protective shell, can achieve the purpose of overall suspension through the upper positioning frame 3, and can achieve the purpose of overall support under the action of the lower positioning frame, that is, can ensure the actual use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a work flow chart of the present invention;

[0032] Figure 2 It is a workflow diagram for preparing the pharmaceutical agent in the present invention;

[0033] Figure 3 It is a three-dimensional schematic diagram of the delivery state of the present invention;

[0034] Figure 4 It is a front cross-sectional view of the present invention in the delivery state;

[0035] Figure 5It is a three-dimensional schematic diagram of the preparation of the pharmaceutical body in the present invention;

[0036] Figure 6 It is a three-dimensional schematic diagram of the positional relationship between the protective shell and the positioning frame in the present invention.

[0037] Figure numerals: 1. agent body; 11. filler; 12. flocculant; 13. heavy metal capture agent; 14. bactericide; 15. antiscalant dispersant; 16. deoxidizer; 17. filter material; 2. protective shell; 3. positioning frame. DETAILED DESCRIPTION

[0038] To make the purpose, technical solution and advantages of the embodiments of the present invention more clear, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0039] See also Figure 1 - Figure 6 The present invention provides a sewage treatment agent, which is made of the following raw material components in parts by weight: 10 to 15 parts of flocculant, 2 to 5 parts of heavy metal capture agent, 2 to 5 parts of bactericide, 2 to 5 parts of scale inhibitor and dispersant, 2 to 5 parts of deoxidizer, 15 to 20 parts of filter material, and 45 to 55 parts of filler.

[0040] Flocculants are used to accelerate the sedimentation of suspended matter and solid-liquid separation in water. They can adsorb suspended particles in water and attract each other through surface charge neutralization or adsorption. On the basis of adsorbing particles, flocculants can form a "bridge" structure between particles to promote the aggregation of particles. Through the above effects, flocculants help suspended matter form large-particle flocs, which can then be separated through physical methods such as filtration and sedimentation.

[0041] Heavy metal capture agents can react strongly with various heavy metal ions in water (such as cadmium, mercury, lead, chromium, copper, zinc, etc.) to form stable insoluble precipitates, thereby separating heavy metals from water. Heavy metal capture agents have the advantages of easy use, rapid reaction, and stable treatment effect. They can be adjusted and optimized according to different heavy metal pollution conditions to achieve the best treatment effect. Compared with traditional chemical precipitation methods, heavy metal capture agents have the characteristics of simple treatment methods, low costs, and stable treatment effects. They can also handle the coexistence of multiple heavy metal ions, and have the advantages of coarse flocs, fast precipitation, fast dehydration, easy post-treatment, small amount of sludge, stable and non-toxic, and no secondary pollution.

[0042] Bactericides can inhibit the growth of algae and microorganisms in water and prevent the formation of microbial sludge, which can cause harm to water treatment systems.

[0043] Scale inhibitors and dispersants, through their special chemical properties, can form stable complexes with metal ions such as calcium and magnesium in water, preventing these ions from combining with other anions to form insoluble precipitates, namely scale, thereby improving the efficiency of sewage treatment. They have excellent dispersing properties and can disperse already formed scale in water to prevent its further deposition and expansion. This dispersing effect helps to keep the sewage treatment system clean.

[0044] Deoxidizers remove dissolved oxygen from water, which helps prevent eutrophication of water bodies and reduce the formation of sediment in water bodies, thereby effectively preventing the occurrence of hypoxia.

[0045] The filter material can filter impurities and intercept suspended matter, impurities and other particulate matter in the water through its physical structure, thereby reducing the turbidity of the water and improving the water quality; the surface of the filter material has adsorptive properties and can adsorb harmful substances such as organic matter, heavy metal ions, bacteria, viruses and other harmful substances in the water to further purify the water quality; the filter material provides a growth environment for microorganisms, forming a biofilm, and degrading organic pollutants in the water through the metabolic activities of microorganisms, thereby improving the wastewater treatment effect.

[0046] The tiny particles in the filler can intercept and adsorb suspended matter, impurities and other pollutants in sewage, thereby effectively removing impurities in sewage and improving water quality; it provides an environment for microorganisms to attach and grow, and the microorganisms grow and multiply on the filler, converting organic matter in sewage into harmless substances through biodegradation, thereby purifying sewage; it helps to enrich organic microorganisms and increase biomass, thereby improving sewage treatment efficiency; the filler has the advantages of large specific surface area, high porosity, good oxygenation performance, fast microbial metabolism, no agglomeration, no clogging, and simple operation and management, thereby extending its service life.

[0047] A method for preparing a sewage treatment agent, comprising any of the above-mentioned sewage treatment agents, comprises the following steps:

[0048] The preparation of the drug body 1 comprises: 1) preparing a flocculant, mixing polyferric sulfate, cassava starch, activated carbon, polyvinyl pyrrolidone and nano zinc oxide in a mixer, and placing the mixture in an application bag;

[0049] 2) Prepare heavy metal capture agent by graft copolymerizing cross-linked starch with acrylamide to obtain heavy metal capture agent;

[0050] 3) Prepare filter material: put quartz sand, fiber ball filter material and garnet sand in a mixer and stir and mix;

[0051] 4) Prepare a deoxidizer by placing iron powder, silicate, pH regulator and oxidant in a mixer and mixing them;

[0052] 5) tableting, placing the raw materials prepared above into a tablet press for tableting;

[0053] 6) Place the materials in application bags respectively, and lay out fillers, flocculants, heavy metal capture agents, bactericides, scale inhibitors and dispersants, deoxidizers and filter materials in sequence;

[0054] Filling, placing the prepared medicine body in the protective shell 2;

[0055] Installation, a positioning frame 3 is installed at the upper end and the lower end of the protective shell 2;

[0056] The assembled medicine body 1, protective shell 2 and positioning frame 3 are placed in the sewage to be treated; the internal medicine body 1 can be protected by the protective shell 2, and the overall suspension purpose can be achieved through the upper positioning frame 3, and the overall support purpose can be achieved under the action of the lower positioning frame 3, that is, the actual use effect can be guaranteed.

[0057] Example 1

[0058] The agent is made of the following raw material components in parts by weight: 10 parts of flocculant, 5 parts of heavy metal capture agent, 5 parts of bactericide, 5 parts of scale inhibitor and dispersant, 5 parts of deoxidizer, 20 parts of filter material and 55 parts of filler.

[0059] The flocculant is made of the following raw material components in parts by weight: polyferric sulfate (PFS): 31 parts, cassava starch: 16 parts, activated carbon: 11 parts, polyvinyl pyrrolidone (PVP): 8 parts, and nano zinc oxide: 15 parts; the heavy metal capture agent is made of the following raw material components in parts by weight: 20 parts of cross-linked starch and 30 parts of acrylamide; the filter material is made of the following raw material components in parts by weight: 10 parts of quartz sand, 15 parts of fiber ball filter material and 17 parts of garnet sand; the deoxidizer is made of the following raw material components in parts by weight: 10 parts of iron powder, 12 parts of silicate, 4 parts of pH regulator and 18 parts of oxidant; the filler is one of soft fiber filler, semi-soft filler, combined fiber filler, elastic three-dimensional filler, suspended filler and obliquely suspended porous suspended filler.

[0060] Example 2

[0061] In this embodiment, preferably, the agent is made of the following raw material components in parts by weight: 12.5 parts of flocculant, 3.5 parts of heavy metal capture agent, 3.5 parts of bactericide, 3.5 parts of scale inhibitor and dispersant, 3.5 parts of deoxidizer, 17.5 parts of filter material, and 50 parts of filler.

[0062] The flocculant is made of the following raw material components in parts by weight: polyferric sulfate (PFS): 31 parts, cassava starch: 16 parts, activated carbon: 11 parts, polyvinyl pyrrolidone (PVP): 8 parts, and nano zinc oxide: 15 parts; the heavy metal capture agent is made of the following raw material components in parts by weight: 20 parts of cross-linked starch and 30 parts of acrylamide; the filter material is made of the following raw material components in parts by weight: 10 parts of quartz sand, 15 parts of fiber ball filter material and 17 parts of garnet sand; the deoxidizer is made of the following raw material components in parts by weight: 10 parts of iron powder, 12 parts of silicate, 4 parts of pH regulator and 18 parts of oxidant; the filler is one of soft fiber filler, semi-soft filler, combined fiber filler, elastic three-dimensional filler, suspended filler and obliquely suspended porous suspended filler.

[0063] Example 3

[0064] In this embodiment, preferably, the agent is made of the following raw material components in parts by weight: 15 parts of flocculant, 2 parts of heavy metal capture agent, 2 parts of bactericide, 2 parts of scale inhibitor and dispersant, 2 parts of deoxidizer, 15 parts of filter material, and 50 parts of filler.

[0065] The flocculant is made of the following raw material components in parts by weight: polyferric sulfate (PFS): 31 parts, cassava starch: 16 parts, activated carbon: 11 parts, polyvinyl pyrrolidone (PVP): 8 parts, and nano zinc oxide: 15 parts; the heavy metal capture agent is made of the following raw material components in parts by weight: 20 parts of cross-linked starch and 30 parts of acrylamide; the filter material is made of the following raw material components in parts by weight: 10 parts of quartz sand, 15 parts of fiber ball filter material and 17 parts of garnet sand; the deoxidizer is made of the following raw material components in parts by weight: 10 parts of iron powder, 12 parts of silicate, 4 parts of pH regulator and 18 parts of oxidant; the filler is one of soft fiber filler, semi-soft filler, combined fiber filler, elastic three-dimensional filler, suspended filler and obliquely suspended porous suspended filler.

[0066] Experimental example:

[0067] The sewage and the sewage treatment agents of Examples 1 to 3 were tested respectively, and the chemical oxygen demand in the sewage before and after treatment was measured according to the standard of GB / 3838-2002, the suspended solids in water quality were measured according to GB / 11901-89, the turbidity removal rate in the sewage before and after treatment was measured according to the standard of GB / 13200-1991, the pH value in the sewage before and after treatment was measured according to the standard of GB / T31962-2015, and the total phosphorus removal rate in the sewage before and after treatment was measured according to the standard of GB / 18918-2002.

[0068] The above test results are shown in Table 1

[0069]

[0070] As can be seen from Table 1, Example 2 has a very good bactericidal and disinfecting effect, can effectively destroy the cell structure of bacteria, kill microorganisms, and degrade organic matter into smaller and more easily degradable molecules, thereby effectively reducing indicators such as COD, and rapidly reducing the organic matter in the wastewater, thereby achieving a better treatment effect. The flocculant causes the suspended particles and colloidal substances in the water to condense into large particles through the effects of electrical neutralization, compression of the double electrical layer, adsorption bridging, etc., which are convenient for sedimentation or flotation, thereby removing turbidity and pollutants in the water. The acid-base regulator is used to maintain the appropriate pH value in the sewage treatment process, which is crucial for many water treatment chemical reactions and biological treatment processes.

[0071] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A sewage treatment agent, characterized in that: The agent is made of the following raw material components in parts by weight: 10-15 parts of flocculant, 2-5 parts of heavy metal capture agent, 2-5 parts of bactericide, 2-5 parts of scale inhibitor and dispersant, 2-5 parts of deoxidizer, 15-20 parts of filter material and 45-55 parts of filler.

2. A sewage treatment agent according to claim 1, characterized in that: The agent is made of the following raw material components in parts by weight: 10 parts of flocculant, 5 parts of heavy metal capture agent, 5 parts of bactericide, 5 parts of scale inhibitor and dispersant, 5 parts of deoxidizer, 20 parts of filter material and 55 parts of filler.

3. A sewage treatment agent according to claim 1, characterized in that: The agent is made of the following raw material components in parts by weight: 12.5 parts of flocculant, 3.5 parts of heavy metal capture agent, 3.5 parts of bactericide, 3.5 parts of scale inhibitor and dispersant, 3.5 parts of deoxidizer, 17.5 parts of filter material and 50 parts of filler.

4. A sewage treatment agent according to claim 1, characterized in that: The agent is made of the following raw material components in parts by weight: 15 parts of flocculant, 2 parts of heavy metal capture agent, 2 parts of bactericide, 2 parts of scale inhibitor and dispersant, 2 parts of deoxidizer, 15 parts of filter material, and 50 parts of filler.

5. A sewage treatment agent according to claim 1, characterized in that: The flocculant is prepared from the following raw material components in parts by weight: 31 parts of polyferric sulfate (PFS), 16 parts of cassava starch, 11 parts of activated carbon, 8 parts of polyvinyl pyrrolidone (PVP), and 15 parts of nano zinc oxide.

6. A sewage treatment agent according to claim 1, characterized in that: The heavy metal capture agent is made of the following raw material components in parts by weight: 20 parts of cross-linked starch and 30 parts of acrylamide.

7. A sewage treatment agent according to claim 1, characterized in that: The filter material is made of the following raw material components in parts by weight: 10 parts of quartz sand, 15 parts of fiber ball filter material and 17 parts of garnet sand.

8. A sewage treatment agent according to claim 1, characterized in that: The deoxidizer is made of the following raw material components in parts by weight: 10 parts of iron powder, 12 parts of silicate, 4 parts of pH regulator and 18 parts of oxidant.

9. A sewage treatment agent according to claim 1, characterized in that: The filler is one of soft fiber filler, semi-soft filler, combined fiber filler, elastic three-dimensional filler, suspended filler, and obliquely suspended porous suspended filler.

10. A method for preparing a sewage treatment agent, comprising the sewage treatment agent according to any one of claims 1 to 9, characterized in that: The steps include: The preparation of the drug body (1) comprises: 1) preparing a flocculant, mixing polyferric sulfate, cassava starch, activated carbon, polyvinyl pyrrolidone and nano zinc oxide in a mixer, and placing the mixture in an application bag; 2) Prepare heavy metal capture agent by graft copolymerizing cross-linked starch with acrylamide to obtain heavy metal capture agent; 3) Prepare filter material: put quartz sand, fiber ball filter material and garnet sand in a mixer and stir and mix; 4) Prepare a deoxidizer by placing iron powder, silicate, pH regulator and oxidant in a mixer and mixing them; 5) tableting, placing the raw materials prepared above into a tablet press for tableting; 6) Place the materials in application bags respectively, and lay out fillers, flocculants, heavy metal capture agents, bactericides, scale inhibitors and dispersants, deoxidizers and filter materials in sequence; Filling, placing the prepared medicine body in the protective shell (2); Installation: a positioning frame (3) is installed at the upper end and the lower end of the protective shell (2); The assembled and installed medicine body (1), protective shell (2) and positioning frame (3) are placed in the sewage to be treated.

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