Method for chemically treating sludge and application

A chemical treatment and sludge technology, applied in the oxidation treatment of sludge, chemical instruments and methods, botanical equipment and methods, etc., can solve the problems of long curing time curing and maintenance, difficulty in ensuring the consistency of cured mortar, and high labor costs. Achieving a good root ecological environment, promoting harmless natural degradation and sufficient nutrients

Inactive Publication Date: 2018-11-23
南京耀珂新材料科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in the actual application process, the silt components in different places and different areas are not the same, so the collected silt of different batches needs to be continuously tested to obtain the corresponding amount of cementitious material, otherwise it i

Method used

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  • Method for chemically treating sludge and application

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Collect 100kg of sludge with a moisture content of 85%, add 0.05kg of sodium phosphate, 1kg of grass seeds, 3kg of zeolite powder, 3kg of diatomaceous earth, 3kg of bentonite, 5kg of crushed straw, 0.3kg of hydrochloric acid, and 0.05kg of dodecyl Trimethylammonium chloride, 15kg of polyvinyl formal solution, 10kg of polyurethane prepolymer, stir quickly and spread evenly on the bare green belt, the thickness of the spread is about 2-3cm, foam after 1-20 minutes Fixed and molded to obtain a porous growth matrix layer with a thickness of about 4-8 cm. Pour water on the substrate layer, the water can penetrate quickly, and the water absorption rate is 2-5 times. After the water absorption is supersaturated, the oozing water is transparent, which shows that the polymer bonding material can effectively cover and protect the particles such as silt. interception effect. After 7-15 days of maintenance, young grass shoots can grow, providing a good growth environment for herbs...

Embodiment 2

[0024] Add 1000 kg of water, 100 kg of kaolin, 50 kg of vermiculite, 50 kg of perlite, 100 kg of diatomite, 3 kg of triethanolamine, 1.5 kg of polyoxyethylene ether nonionic surfactant, 0.05 kg of EDTA into the mixing tank Sodium, 3 kilograms of hydrogen peroxide, 50 kilograms of melamine resins, stir to obtain component 1;

[0025] There are 4 feeding ports A, B and C connected to the splicing mixing head. The feeding port A is a slurry with a water content of 75%; the feeding port B is connected to the above component 1; the feeding port C is connected to the polyurethane prepolymerization Body, prepolymer NCO content 12%; start the splicing mixing head, start A, B, C feed pumps at the same time, mix according to the feed ratio of 4:2:1 and spray it on the slope after surface fixing treatment, Under normal temperature and pressure, the reaction is finalized for 1-60 minutes to obtain a plant growth matrix layer for slope protection. The substrate layer is continuous, dust-f...

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Abstract

The invention discloses a method for chemically treating sludge and application. The method comprises the following steps: placing sludge in a stirring tank, adjusting the water content to 20 to 99 percent, and obtaining sludge slurry; and adding a macromolecular binding material, a sludge improver and a functional additive into the sludge slurry A, mixing, stirring, introducing gas, and obtaininga sludge purificant. According to the requirements of an application field and an application objective, a porous solid product with excellent mechanical performance can be obtained by spraying, smearing, salivating, filling, and irrigating the sludge purificants, the product has no dissolved sludge and is unlikely to scatter, so that the product is convenient to store and transport and light andsanitary to use; and in addition, after being cured, the sludge purificants are porous, permeable, hydrophilic, capable of retaining water, and sufficient in nutrition, capable of providing a good root ecological environment to the plant and capable of promoting the harmless natural degradation of the sludge, before the treatment, the sludge does not need to be settled, filtered, calcined or buried, so that the problems of the traditional sludge treatment method that the energy consumption is large, the period is long, the cost is high, and the procedures are complicated and the like can be solved.

Description

technical field [0001] The invention belongs to the field of sludge treatment, and in particular relates to a method for chemically treating sludge and an application thereof. Background technique [0002] The commonly used dredging methods for environmental water bodies such as rivers and lakes include draining and excavating, pumping and discharging, underwater digging, and twisting and dewatering. The above-mentioned dredging method has cumbersome steps and low efficiency, and the silt taken out is large in volume, and the thin silt is difficult to transport by ordinary trucks. If the transportation or stacking measures are improper, the surrounding soil will be polluted with the rainwater washing, causing secondary pollution of the water body and siltation. Various treatment technologies for sewage sludge also have problems such as low efficiency, limited daily treatment capacity, high equipment and operating costs, and limited dehydration effects. Its common treatment...

Claims

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Application Information

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IPC IPC(8): C02F11/00C02F11/02C02F11/06A01G24/20A01G24/10A01G24/13A01G24/15A01G24/22A01G24/30C04B18/04
CPCA01G24/10A01G24/13A01G24/15A01G24/20A01G24/22A01G24/30C02F11/00C02F11/004C02F11/008C02F11/02C02F11/06C04B18/0418Y02W30/91
Inventor 谭明宁周幸佳金基石魏超
Owner 南京耀珂新材料科技有限公司
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