Kitchen waste sewage treatment system

A sewage treatment system and kitchen waste technology, applied in biological water/sewage treatment, flotation water/sewage treatment, water/sewage multi-stage treatment, etc., can solve problems such as insufficient strength, achieve strong water quality adaptability, and run Low cost, beneficial to the effect of adsorbing biofilm

Active Publication Date: 2021-11-16
青海洁神环境科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The material formula and production process of the biological turntable discs are kept secret, and it is difficult for domestic manufacturers to imitate them. If you need to use them, you can only buy them.
Moreover, the PVDC biological turntable material still has the defect of insufficient strength in the face of kitchen waste sewage.

Method used

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  • Kitchen waste sewage treatment system
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Examples

Experimental program
Comparison scheme
Effect test

preparation example 1

[0049] 1. Preparation of modified PVDC polymer

[0050] (1) Prepare the water phase: add 10wt% HPMC and 5wt% polyvinylpyrrolidone in water as a dispersant, stir to obtain the water phase;

[0051] (2) Prepare the oil phase: feed vinylidene chloride, 1,2-dichloroethylene, glycidyl methacrylate, and dimethyl diallyl ammonium chloride according to the mass ratio of 90:5:4:1, Then add 0.6wt% EHP of the total mass of the monomers as an initiator to prepare the oil phase;

[0052](3) Add the water phase to the oil phase, the mass ratio of the water phase and the oil phase is 1:1, heat to 80°C, maintain the temperature range, and polymerize under the stirring condition of 600rpm, the reaction time is 24h, filter, wash with water, and dry to prepare The obtained modified PVDC polymer had a weight-average molecular weight of 61,000, a PDI of 2.04, and a melting temperature of 142.8°C.

[0053] 2. Preparation of Biological Turntable Disc Material : After the preparation of the mod...

preparation example 2

[0059] Other conditions and steps are identical with preparation example 1, difference is that the preparation process of modified PVDC polymer is:

[0060] (1) Prepare the water phase: add 12wt% HPMC and 3wt% polyvinylpyrrolidone in water as a dispersant, stir to obtain the water phase;

[0061] (2) Prepare the oil phase: feed vinylidene chloride, 1,2-dichloroethylene, glycidyl methacrylate, and dimethyl diallyl ammonium chloride according to the mass ratio of 80:10:7:3, Then add 0.6wt% EHP of the total mass of the monomers as an initiator to prepare the oil phase;

[0062] (3) Add the water phase to the oil phase, the mass ratio of the water phase and the oil phase is 1:1, heat to 80°C, maintain the temperature range, and polymerize under the stirring condition of 600rpm, the reaction time is 24h, filter, wash with water, and dry to prepare The obtained modified PVDC polymer had a weight-average molecular weight of 62,000, a PDI of 2.09, and a melting temperature of 142.7°C...

preparation example 3

[0064] Other conditions and steps are identical with preparation example 1, difference is that the preparation process of modified PVDC polymer is:

[0065] (1) Prepare the water phase: add 10wt% HPMC and 5wt% polyvinylpyrrolidone in water as a dispersant, stir to obtain the water phase;

[0066] (2) Prepare the oil phase: feed vinylidene chloride, 1,2-dichloroethylene, glycidyl methacrylate, and dimethyl diallyl ammonium chloride according to the mass ratio of 87:6:5:2, Then add 0.6wt% EHP of the total mass of the monomers as an initiator to prepare the oil phase;

[0067] (3) Add the water phase to the oil phase, the mass ratio of the water phase and the oil phase is 1:1, heat to 80°C, maintain the temperature range, and polymerize under the stirring condition of 600rpm, the reaction time is 24h, filter, wash with water, and dry to prepare The obtained modified PVDC polymer had a weight-average molecular weight of 62,000, a PDI of 2.07, and a melting temperature of 142.5°C....

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Abstract

The invention relates to a kitchen waste sewage treatment system, which comprises a pretreatment system and a biochemical treatment system which are connected in sequence, wherein biological rotating disc equipment (BBR equipment) is adopted in the biochemical treatment system, the material of a biological rotating disc comprises a three-dimensional net structure formed by thermoforming cellosilk and latex, and thecellosilk is made of a modified PVDC polymer obtained by copolymerizing vinylidene chloride, 1, 2-dichloroethylene, glycidyl methacrylate and a cationic monomer, and an auxiliary material. According to the invention, the method is simple in technological process, high in effluent standard reaching rate, easy in sludge treatment, efficient, energy-saving, low in operation cost, small in occupied area and very suitable for treating kitchen waste sewage; the biological rotating disc in the BBR equipment forms an anaerobic and anoxic environment inside the disc and an aerobic environment outside the disc, and the anaerobic and anoxic environment inside the disc and the aerobic environment outside the disc arecombined with the anaerobic, anoxic and aerobic environment at the microscopic level of a biological membrane, so that a stronger synchronous nitrification and denitrification effect is exerted, and the operation cost and the retention time of a biochemical pool are saved.

Description

technical field [0001] The invention relates to the field of sewage treatment, in particular to a kitchen waste sewage treatment system. Background technique [0002] With the continuous development of urbanization in our country, the amount of kitchen waste is increasing day by day, and the sewage treatment of kitchen waste generated has become an urgent problem to be solved. During the transportation and stacking of food waste, a large amount of pollutants will be produced, which will be dissolved in the leachate of food waste. Compared with other types of urban sewage, the treatment of food waste sewage is more difficult, mainly because the organic matter in food waste wastewater High concentration, poor biodegradability, high concentration of ammonia nitrogen. The COD of general kitchen waste sewage is about 6000-15000mg / L, the concentration of ammonia nitrogen is about 1000-2500mg / L, and the total phosphorus is about 30-60mg / L. In addition, the content of protein and o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F3/08C08F214/08C08F214/12C08F220/32C08F226/02C08F2/20D01F6/48D01F1/10D04H3/007D04H3/07D04H3/12C02F1/24C02F1/52C02F101/30
CPCC02F9/00C02F3/082C08F214/08C08F2/20D01F6/48D01F1/10D04H3/007D04H3/07D04H3/12C02F1/24C02F1/52C08F214/12C08F220/325C08F226/02C02F2101/30Y02W10/10
Inventor 柴伟贺王伟伟左浩纳守军
Owner 青海洁神环境科技股份有限公司
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