Device for treating high ammonia-nitrogen wastewater integrated with solid-phase denitrifying coupled membrane bioreactor and method

A membrane bioreactor, solid-state reverse nitrification technology, applied in biological water/sewage treatment, sustainable biological treatment, chemical instruments and methods, etc., can solve the problems of complicated system operation, increased denitrification cost, small amount or excess, etc. Achieve the effect of improving system nitrification efficiency, facilitating reproduction and growth, and reducing floor space.

Inactive Publication Date: 2018-12-21
UNIV OF JINAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Liquid organic matter is used as an external carbon source, and it is difficult to control the amount of addition, especially when the concentration of nitrate nitrogen in the influent fluctuates, there is a risk of a small or excessive amount of carbon source, which will not only increase the cost of denitrification , will also lead to complex system operation and prominent problems such as secondary pollution

Method used

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  • Device for treating high ammonia-nitrogen wastewater integrated with solid-phase denitrifying coupled membrane bioreactor and method
  • Device for treating high ammonia-nitrogen wastewater integrated with solid-phase denitrifying coupled membrane bioreactor and method

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Effect test

Embodiment 1

[0035] device see attached figure 1 , a solid phase nitrification coupling membrane bioreactor integrated high ammonia nitrogen wastewater treatment device, equipped with cube membrane bioreactor and cylindrical solid phase nitrification reactor, water inlet system, stirring system, aeration system, temperature control system, Outlet system and automatic control system, membrane bioreactor 8 is equipped with submerged membrane module 7, aeration disc 9, stirring device 6, temperature controller 3 and liquid level controller 4, liquid level controller 4 controls the pump 1. Pump the high-ammonia-nitrogen waste water in the raw water tank 2 into the membrane bioreactor 8 during the 2 min water intake stage; the aeration pump 10 continuously supplies oxygen through the aeration disc 9; the reactor sludge is fluidized through the stirring device 6; The water from the membrane bioreactor is pumped into the cylindrical solid phase nitrification reactor 13 through the peristaltic pum...

Embodiment 2

[0042] device see attached figure 1 , a solid phase nitrification coupling membrane bioreactor integrated high ammonia nitrogen wastewater treatment device, equipped with cube membrane bioreactor and cylindrical solid phase nitrification reactor, water inlet system, stirring system, aeration system, temperature control system, Outlet system and automatic control system, membrane bioreactor 8 is equipped with submerged membrane module 7, aeration disc 9, stirring device 6, temperature controller 3 and liquid level controller 4, liquid level controller 4 controls the pump 1. Pump the high-ammonia-nitrogen waste water in the raw water tank 2 into the membrane bioreactor 8 during the 2 min water intake stage; the aeration pump 10 continuously supplies oxygen through the aeration disc 9; the reactor sludge is fluidized through the stirring device 6; The water from the membrane bioreactor is pumped into the cylindrical solid phase nitrification reactor 13 through the peristaltic pum...

Embodiment 3

[0049] device see attached figure 1 , a solid phase nitrification coupling membrane bioreactor integrated high ammonia nitrogen wastewater treatment device, equipped with cube membrane bioreactor and cylindrical solid phase nitrification reactor, water inlet system, stirring system, aeration system, temperature control system, Outlet system and automatic control system, membrane bioreactor 8 is equipped with submerged membrane module 7, aeration disc 9, stirring device 6, temperature controller 3 and liquid level controller 4, liquid level controller 4 controls the pump 1. Pump the high-ammonia-nitrogen waste water in the raw water tank 2 into the membrane bioreactor 8 during the 2 min water intake stage; the aeration pump 10 continuously supplies oxygen through the aeration disc 9; the reactor sludge is fluidized through the stirring device 6; The water from the membrane bioreactor is pumped into the cylindrical solid phase nitrification reactor 13 through the peristaltic pum...

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Abstract

The invention discloses a device for treating high ammonia-nitrogen wastewater integrated with a solid-phase denitrifying coupled membrane bioreactor and a method. The device mainly comprises a membrane bioreactor, a solid-phase denitrifying bio-membrane reactor, a water feeding system, a stirring system, an aerating system, a temperature control system and a water draining system; a micro-filtration membrane component is adopted by the membrane bioreactor; poly(butylene succinate) grains are filled in a solid-phase denitrifying device, wherein the adding volume is 60-80%. The method disclosedby the invention comprises the following steps: quickly realizing the membrane forming of a solid-phase denitrifying reactor in the starting stage and setting aeration rate as 2.8-3.2L / min; setting hydraulic retention time as 24h for the 1st to 10th days, 18h for the 11th-15th days and 12h for the 16th-20th days; setting the aeration rate as 1.8-2.2L / min in the stable stage; setting the hydraulicretention time as 12h. The device disclosed by the invention can solve the problem of ultrahigh organic content of effluent caused by insufficient carbon source and liquid carbon source in the denitrifying stage. The device has the advantages of small floor space, high anti-shock loading capability, no sludge bulking problem, capability of saving energy and reducing consumption, low cost, and thelike.

Description

technical field [0001] The invention relates to a solid phase nitrification coupled membrane bioreactor integrated high ammonia nitrogen wastewater treatment device and method, belongs to the field of biological treatment of wastewater, and is suitable for synchronous removal of total nitrogen and organic matter in high ammonia nitrogen wastewater. Background technique [0002] With the rapid development of industry and agriculture, the water consumption of industry and agriculture is increasing day by day, and the total amount of sewage discharge is gradually increasing, resulting in the pollution of groundwater resources in many areas to varying degrees. highly valued. In my country's GB18918-2002 "Discharge Standards for Urban Sewage Treatment Plants", the first-level standard A stipulates that the TN (calculated as N) discharge limit is 15 mg / L, and NH 3 -N (calculated as N) is 5 mg / L. Membrane bioreactor is a new type of wastewater treatment system that organically co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/02C02F3/12C02F3/30C02F101/16
CPCC02F3/02C02F3/1268C02F3/301C02F2101/16Y02W10/10
Inventor 杜斌韩飞魏东魏琴闫涛冯锐孙蒙许伟颖
Owner UNIV OF JINAN
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