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Real-time regulating and controlling method for anaerobic membrane bioreactor and reactor adopting real-time regulating and controlling method

An anaerobic membrane biology and real-time control technology, which is applied in chemical instruments and methods, anaerobic digestion treatment, biological water/sewage treatment, etc., can solve the problems of equipment investment cost and monitoring real-time impact, and achieve improved treatment capacity and The effects of stable operation, easy promotion and easy operation

Active Publication Date: 2017-08-29
RES CENT FOR ECO ENVIRONMENTAL SCI THE CHINESE ACAD OF SCI
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, purely for the online monitoring of the anaerobic fermentation liquid phase to implement operation control, it is necessary to rely on the difficult online monitoring data such as VFA and alkalinity, which will have a great impact on the equipment investment cost and real-time monitoring

Method used

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Embodiment 1

[0061] Embodiment 1: the anaerobic membrane bioreactor based on the method of the present invention processes pig breeding wastewater

[0062] Pig breeding wastewater is treated with anaerobic membrane bioreactor, and the joint regulation method of biogas production rate-pH-liquid level is adopted. The influent water used is the waste water produced by flushing manure from pig farms, and the large particles are removed through a 100-mesh sieve. Influent COD is 10000 (±2000) mg / L, ammonia nitrogen is 3000 (±500) mg / L. The anaerobic membrane bioreactor used is an external tubular anaerobic membrane bioreactor; the membrane module is a tubular membrane. In addition to the inlet and outlet pumps, the anaerobic membrane bioreactor is also equipped with acid dosing pumps, liquid level gauges, gas flow meters, pH sensors, ORP sensors, and PLC control cabinets. When the liquid level in the reactor is lower than the upper limit of the set liquid level and the biogas production rate i...

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Abstract

The invention discloses a real-time regulating and controlling method for an anaerobic membrane bioreactor and a reactor adopting the real-time regulating and controlling method. Water inflow, water outflow and addition quantity of exogenous acid are regulated and controlled in real time by monitoring the gas yield, a pH value and liquid level changes of high-concentration organic wastewater in the treatment process of the anaerobic membrane bioreactor in real time, and treatment efficiency and operation stability of the anaerobic membrane bioreactor are improved. The method disclosed by the invention has the advantages of simplicity and convenience in operation and easiness for popularization; biomass energy can be recovered while the high-concentration organic wastewater is treated.

Description

technical field [0001] The invention belongs to the field of wastewater treatment, and relates to an automatic control method for treating high-concentration organic wastewater (such as livestock and poultry breeding wastewater) with an anaerobic membrane bioreactor, and more particularly to a real-time control method for an anaerobic membrane bioreactor and a reactor using it. Background technique [0002] The "National Livestock and Poultry Breeding Pollution Prevention and Control "Twelfth Five-Year" Plan" released in 2013 shows that in 2010, the total amount of COD discharged from large-scale farming in the country reached 11.84 million tons, an increase of 47% over 2001, accounting for the total amount of COD discharged from sewage in the country. 45% of agricultural COD emissions, accounting for 95% of the total agricultural COD emissions. Wastewater from livestock and poultry farming contains a large amount of feces, urine, hair and suspended matter. The CODcr of li...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/28C02F103/20
CPCC02F3/2853C02F3/2893C02F2103/20C02F2209/06C02F2209/40C02F2209/42C02F2303/10
Inventor 魏源送布和础鲁郁达伟
Owner RES CENT FOR ECO ENVIRONMENTAL SCI THE CHINESE ACAD OF SCI