In-situ repairing material of bottom mud of black and odorous water body and preparation method of in-situ repairing material

A technology for in-situ restoration of black and odorous water bodies, applied in chemical instruments and methods, water/sludge/sewage treatment, sludge detoxification, etc. And growth pollution, sludge dehydration difficulties and other problems, to achieve good phosphorus and nitrogen removal effect, promote reduction, and less equipment

Inactive Publication Date: 2019-12-31
BEIJING ZHONGKE AOSHUI ENVIRONMENTAL PROTECTION ENG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of these treatment methods have difficulties in sludge dehydration, long treatment period, and various eutrophic components contained in sludge cannot be completely removed. In the future, it is still necessary to continuously inves

Method used

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  • In-situ repairing material of bottom mud of black and odorous water body and preparation method of in-situ repairing material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Select 200 grams of palygorskite according to the corresponding ratio and pass through a 300-mesh filter sieve after being pulverized to obtain powdery palygorskite. Pass through a 30-mesh sieve to obtain powdery iron scrap, and 120 grams of bentonite are pulverized and pass through an 80-mesh sieve to obtain filtered bentonite. Mix the obtained powdery palygorskite, powdery zeolite, powdery scrap iron scraps and filtered bentonite, stir evenly and add 10 grams of lanthanum chloride aqueous solution with a mass concentration of 0.2%, and put it into a granulator to obtain 0.8mm The particle size of the spherical material is dried at 80 degrees Celsius for 1 hour, then sintered at 280 degrees Celsius for 1 hour and then cooled to room temperature to obtain the finished product.

Embodiment 2

[0044]Select 200 grams of palygorskite according to the corresponding ratio and pass through a 1500 mesh filter sieve after crushing to obtain powdery palygorskite, and 180 grams of zeolite pass through a 700 mesh filter sieve after crushing to obtain powdery zeolite. Pass through a 100-mesh sieve to obtain powdery waste iron scraps, and 120 grams of bentonite are pulverized and pass through a 450-mesh sieve to obtain filtered bentonite. The obtained powdery palygorskite, powdery zeolite, powdery scrap iron scraps and filtered bentonite are mixed, after stirring evenly, add 60 grams of lanthanum chloride aqueous solution with a mass concentration of 0.5%, and put it into a granulator to obtain 5mm pellets. diameter pellet material, the pellet material was dried at 200 degrees Celsius for 5 hours, then sintered at 800 degrees Celsius for 5 hours and then cooled to room temperature to obtain the finished product.

Embodiment 3

[0046] Select palygorskite 800 grams according to corresponding ratio and cross 300 mesh sieves after pulverizing, obtain powdery palygorskite, zeolite 750 grams pass 100 mesh sieves after pulverizing, obtain powdery zeolite, scrap iron scrap 680 grams after pulverizing Pass through a 30-mesh sieve to obtain powdery iron scrap, and 500 grams of bentonite are pulverized and pass through an 80-mesh sieve to obtain filtered bentonite. Mix the obtained powdery palygorskite, powdery zeolite, powdery scrap iron scraps and filtered bentonite, stir evenly and add 10 grams of lanthanum chloride aqueous solution with a mass concentration of 0.2%, and put it into a granulator to obtain 0.8mm The particle size of the spherical material is dried at 80 degrees Celsius for 1 hour, then sintered at 280 degrees Celsius for 1 hour and then cooled to room temperature to obtain the finished product.

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Abstract

The invention belongs to the technical field of sewage treatment materials and preparation thereof and discloses an in-situ repairing material of bottom mud of a black and odorous water body and a preparation method of the in-situ repairing material. The material is prepared from various raw materials which have good nitrogen and phosphorus removal effects, very good slow release functions and inaddition are rich in source. By improving living environments of microorganisms of the bottom mud, increasing the decomposition speeds of the microorganisms upon organic matters in the bottom mud andimproving the nitrogen and phosphorus removal effects, amount reduction of the bottom mud can be promoted; and in addition, phosphorus in the bottom mud can be effectively immobilized through phosphorus immobilization components in the various raw materials, the phosphorus can be prevented from being released into the water body again, and effects that endogenous pollution is effectively reduced,degradation of pollutants of the bottom mud is accelerated, the amount of sludge of the black and odorous water body is reduced, situations of the water body areimproved, and the treatment effects arelong-lasting can be achieved. The preparation method is simple and rapid in operation process, small in number of equipment for operation, low in requirement on operators, low in cost and applicableto industrial production and popularization, and consumption of labor resources, material resources and economic resources can be effectively reduced.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment materials and preparation thereof, and in particular relates to an in-situ restoration material for black and odorous water bottom mud and a preparation method thereof. Background technique [0002] Black and odorous water bodies are a difficult point in urban and some rural river water environment management, especially in densely populated areas. Black and odorous water bodies have serious impacts on surrounding residents, and social reactions are strong, so it is imminent to treat black and odorous water bodies. [0003] The generation of black and odorous water is the result of comprehensive superposition of non-point source pollution, point source pollution, and internal source pollution. Among them, point source pollution and non-point source pollution can be effectively curbed by strict discharge standards and cutting off pollution sources; endogenous pollution mainly comes from th...

Claims

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Application Information

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IPC IPC(8): C02F11/00C02F11/02
CPCC02F11/004C02F11/02C02F2303/06C02F2305/06
Inventor 朱力校杨尚斌顾君霞
Owner BEIJING ZHONGKE AOSHUI ENVIRONMENTAL PROTECTION ENG TECH
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