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Wastewater anaerobic biological treatment system for seasonal strain preservation and recovery, and application thereof

An anaerobic biology and treatment system technology, applied in the field of sewage biological treatment, can solve the problems that the sludge in the anaerobic system enters the endogenous respiration stage, it is difficult to achieve sufficient load water intake, and hinders the continuous operation of anaerobic treatment, etc., to achieve Easy to automate control, easy to promote, and low cost

Pending Publication Date: 2020-05-08
RES CENT FOR ECO ENVIRONMENTAL SCI THE CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to insufficient load, the sludge concentration of seasonal intermittent wastewater in the shutdown stage is often much lower than that in the normal operation stage, resulting in maintaining a sufficient amount of anaerobic sludge as a key challenge for the preservation of anaerobic treatment bacteria: sufficient load is limited by the amount of influent The limit is difficult to reach, and the low load causes the sludge in the anaerobic system to enter the endogenous respiration stage and die
The decline of the bacteria makes it difficult to restart the anaerobic treatment, and the COD removal rate is reduced. Further treatment is required to meet the standard, which hinders the continuous operation of the anaerobic treatment

Method used

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  • Wastewater anaerobic biological treatment system for seasonal strain preservation and recovery, and application thereof
  • Wastewater anaerobic biological treatment system for seasonal strain preservation and recovery, and application thereof
  • Wastewater anaerobic biological treatment system for seasonal strain preservation and recovery, and application thereof

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Embodiment 1

[0089] See Figure 1-3 . The seasonal wastewater biological treatment system consists of water inlet tank 1, anaerobic biological treatment device 2, subsequent treatment device 3, temperature sensor 4, pH sensor 5, gas production rate sensor 6, water inlet control unit 7, water inlet unit 8, liquid The combination of position sensors 9 is used for the treatment of potato starch wastewater or black water of ocean-going ships. Among them, the potato starch factory is limited to production in autumn and winter due to the limited supply of potatoes, and the shutdown time can last from a few days to several months, which has strong seasonality; the wastewater from ocean-going ships will enter intermittent operation of different lengths according to the requirements of the discharge sea area stage.

[0090] Seasonal potato starch wastewater is pretreated by protein extraction, grilling and sand settling, and then enters the intake pond. Under the control of the water inlet contr...

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Abstract

The invention relates to a wastewater anaerobic biological treatment system for seasonal strain preservation and recovery, and an application thereof. The wastewater anaerobic biological treatment system comprises a water inlet device for inputting wastewater to be treated, an anaerobic biological treatment device for carrying out anaerobic biological treatment on the wastewater to be treated, a subsequent treatment device for further treating the wastewater passing through the anaerobic biological treatment device, a monitoring device for monitoring and outputting parameters of a mixed liquidin the anaerobic biological treatment device, and a control device for controlling a servo component in the anaerobic biological treatment device on the basis of a signal which is output by the monitoring device and contains a parameter value so as to adjust the corresponding parameters. A process reactor of the system is simple in structure, convenient to maintain, concise in operation logic, simple in operation and maintenance, low in manual requirement and easy to realize automatic control.

Description

technical field [0001] The invention belongs to the technical field of sewage biological treatment, and in particular relates to a waste water anaerobic biological treatment system for preservation and recovery of seasonal strains and its application. Background technique [0002] Anaerobic digestion can effectively realize simultaneous energy recovery and pollutant removal from high-concentration organic wastewater. It is a green sewage recycling technology and has great potential in the field of high-concentration organic wastewater treatment and recycling. With the rapid improvement of the online continuous monitoring capability of pollution sources, the discharge of industrial wastewater formed by my country's huge industrial volume has increasingly attracted widespread public attention; the seasonal intermittent sewage discharge sources such as agricultural and sideline food processing industries due to raw material restrictions have also accelerated recently. Incorporat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F3/28
CPCC02F3/006C02F3/28C02F2209/06C02F2209/02C02F2209/42C02F2209/005
Inventor 郁达伟王拓魏源送陈梅雪梁玉帅张青青
Owner RES CENT FOR ECO ENVIRONMENTAL SCI THE CHINESE ACAD OF SCI
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