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Bean product sewage treatment method and system

A sewage treatment method and bean product technology, which is applied in food industry wastewater treatment, neutralized water/sewage treatment, water/sewage multi-stage treatment, etc., can solve the problems of easy deterioration of treatment effect, high content of organic pollutants, water quantity and water quality Inhomogeneity and other problems, to achieve the effect of stable treatment, large amount of water treatment, and efficient reaction

Active Publication Date: 2019-04-26
云南天朗环境科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This type of sewage has a high content of organic pollutants and is a high-concentration organic-polluted wastewater that pollutes the environment.
Since the production of soybean products belongs to the intermittent production mode, the drainage time is relatively concentrated, and the water volume and water quality are very uneven. In the process of sewage treatment in the existing technology, the treatment effect is easy to deteriorate and frequent maintenance is required.

Method used

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  • Bean product sewage treatment method and system
  • Bean product sewage treatment method and system
  • Bean product sewage treatment method and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0078] The method for treating soybean product sewage comprises the following steps: filtering the soybean product sewage with a filter grid, and transporting suspended solids and floating objects; taking the filtered sewage and adding sodium hydroxide for primary precipitation; taking the upper liquid and adding PH Regulator, adjust the PH value to 6; then send the liquid into the anaerobic reaction tank for reaction, and recover the generated biogas; after the reacted liquid is filtered to remove scum, it is sent to the biological contact oxidation reaction tank for reaction; The reacted liquid is added with coagulant and flocculant for flocculation and precipitation, and after standing for stratification, the supernatant is discharged.

Embodiment 2

[0080] The method for treating soybean product sewage comprises the following steps: filtering the soybean product sewage with a filter grid, and transporting suspended solids and floating objects; taking the filtered sewage and adding sodium hydroxide for primary precipitation; taking the upper liquid and adding PH Regulator, adjust the pH value to 8; then send the liquid into the anaerobic reaction tank for reaction, and recover the generated biogas; after the reacted liquid is filtered to remove scum, it is sent to the biological contact oxidation reaction tank for reaction; The reacted liquid is added with coagulant and flocculant for flocculation and precipitation, and after standing for stratification, the supernatant is discharged.

Embodiment 3

[0082] The method for treating soybean product sewage comprises the following steps: filtering the soybean product sewage with a filter grid, and transporting suspended solids and floating objects; taking the filtered sewage and adding sodium hydroxide for primary precipitation; taking the upper liquid and adding PH Regulator, adjust the pH value to 7; then send the liquid into the anaerobic reaction tank for reaction, and recover the generated biogas; after the reacted liquid is filtered to remove scum, it is sent to the biological contact oxidation reaction tank for reaction; The reacted liquid is added with coagulant and flocculant for flocculation and precipitation, and after standing for stratification, the supernatant is discharged.

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Abstract

The invention discloses a bean product sewage treatment method. The bean product sewage treatment method comprises the steps of filtering bean product sewage by using a filtering grating, transportinga suspended solid and a floating object outside; preliminarily settling the filtered sewage; adding a PH regulator into a supernatant liquid; feeding the liquid into an anaerobic reaction tank to react; filtering and removing a scum of the reacted liquid, feeding the liquid into a bio-contact oxidation reaction tank to react; fluctuating and settling the reacted liquid, standing to layer, and discharging a supernatant outside. The method has the advantage of efficient and stable processing. The invention further discloses a bean product sewage treatment method, and the system comprises a sewage pretreatment device, a preliminary settling tank, a regulating tank, the anaerobic reaction tank, a filter tank, the bio-contact oxidation reaction tank, a settling tank, and a clean water tank which are sequentially connected through pipelines. The system is used for treating a large quantity of sewage, and is suitable for large-scale bean product processing enterprises and processing zones, and the treated water can be directly discharged into the municipal sewage pipe network.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment, and in particular relates to a soybean product sewage treatment method and system. Background technique [0002] Sewage from soybean product processing mainly includes soybean soaking, soaking and pressing wastewater and flushing wastewater of raw soybeans, which mainly come from soybean washing water, soybean soaking water, pulp and residue separation water, press filtration water, washing water of various production process containers, Floor washing water, etc. The COD of yellow swill in sewage is as high as 20,000-30,000 mg / L, and the COD of soaked soybean water is 4,000-8,000 mg / L. This type of sewage has a high content of organic pollutants and is a high-concentration organic polluted wastewater that pollutes the environment. Since the production of soybean products belongs to the intermittent production mode, the drainage time is relatively concentrated, and the water volume and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F103/32
CPCC02F1/001C02F1/66C02F3/02C02F3/28C02F9/00C02F2001/007C02F2103/32
Inventor 赵鹏张燕玲柴洋张林李金翀王长胜吕维畅刘濮瑜高迎峰刘缘缘
Owner 云南天朗环境科技有限公司
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