Method for rapidly starting anaerobic ammoxidation by utilizing anaerobic filter

A technology of anaerobic ammonium oxidation and anaerobic filter, which is applied in the field of sewage treatment, can solve the problems of slow growth, difficulty in bacterial colony enrichment and cultivation, difficulty in quick start-up of anaerobic ammonium oxidation reactor, etc., so as to accelerate the start-up process and promote rapid Good effect of domestication and treatment

Active Publication Date: 2015-04-08
INST OF AGRI RESOURCES & ENVIRONMENT SHANDONG ACADEMY OF AGRI SCI
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  • Claims
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Problems solved by technology

[0004] However, since the vast majority of anammox bacteria are strict autotrophic growth bacteria, their growth is extremely slow, their doubling time is as long as 11 days, and they are only active when the cell concentration is high, and they are sensitive to external environmental factors such as oxygen molecules. As a result, it is difficult to enrich and cultivate the bacterial flora, and it is difficult to quickly start the anammox reactor

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  • Method for rapidly starting anaerobic ammoxidation by utilizing anaerobic filter
  • Method for rapidly starting anaerobic ammoxidation by utilizing anaerobic filter
  • Method for rapidly starting anaerobic ammoxidation by utilizing anaerobic filter

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Embodiment 1

[0047] The method for quickly starting anaerobic ammonium oxidation with an anaerobic filter with a volume of 11L is as follows:

[0048] (1) Select a suspension ball filler with a diameter of 20 mm and soak it in the denitrification sedimentation sludge for 30 hours;

[0049] (2) Fill the filler treated in step (1) in the anaerobic filter, add nutrient solution to the anaerobic filter design capacity in the anaerobic filter, the nutrient solution water quality is EDTA5000mg / L, NaHCO 3 500mg / L, KH 2 PO 4 20mg / L, FeSO 4 1000mg / L, Fe 2 (SO 4 ) 3 3000mg / L, MgSO 4 200mg / L, CuSO 4 100mg / L;

[0050] (3) Denitrification activated sludge film formation stage

[0051] Use denitrification activated sludge to wash the filler from top to bottom. The operation method is: use a peristaltic pump to hang the denitrification activated sludge on the filler. The water inlet method is the upper inlet and the lower outlet. Twice a day, with an interval of 12 hours, 30 minutes each time, ...

Embodiment 2

[0063] The method for quickly starting anaerobic ammonium oxidation with an anaerobic filter with a volume of 11L is as follows:

[0064] (1) Select a suspension ball filler with a diameter of 25 mm and soak it in the denitrification sedimentation sludge for 24 hours;

[0065] (2) Fill the filler treated in step (1) in the anaerobic filter, add nutrient solution to the anaerobic filter design capacity in the anaerobic filter, the nutrient solution water quality is EDTA10000mg / L, NaHCO 3 1000mg / L, KH 2 PO 4 30mg / L, FeSO 4 2000mg / L, Fe2(SO 4 ) 3 5000mg / L, MgSO 4 500mg / L, CuSO 4 200mg / L;

[0066] (3) Denitrification activated sludge film formation stage

[0067] Use denitrification activated sludge to wash the packing from top to bottom. The operation method is: use a peristaltic pump to return the denitrification activated sludge. times, the time interval is 12h, each time is 30min, and the water inflow rate is 10L / min·m 3 Pool capacity, the amount of denitrification a...

Embodiment 3

[0079] Volume is 1m 3 The method for quickly starting anaerobic ammonium oxidation in the pilot test of the anaerobic filter for dry cleaning pig farm wastewater, the steps are as follows:

[0080] (1) Select a suspension ball filler with a diameter of 30 mm and soak it in the denitrification sedimentation sludge for 36 hours;

[0081] (2) Fill the filler treated in step (1) in the anaerobic filter, add nutrient solution to the anaerobic filter design capacity in the anaerobic filter, the nutrient solution water quality is EDTA6000mg / L, NaHCO 3 500mg / L, KH 2 PO 4 20mg / L, FeSO 4 1500mg / L, Fe 2 (SO 4 ) 3 3000mg / L, MgSO 4 300mg / L, CuSO 4 100mg / L;

[0082] (3) Denitrification activated sludge film formation stage

[0083]After step (2), use denitrifying activated sludge to rinse the packing from top to bottom. The operation method is: reflow the activated sludge, the water inlet method is the upper inlet and the lower outlet, and the rinsing rate is one Twice a day, th...

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Abstract

A related method for rapidly starting anaerobic ammoxidation by utilizing an anaerobic filter comprises: utilizing denitrification sludge to perform inoculation, performing an activated-sludge membrane-forming stage and reaction-starting first, second and third stages, utilizing simulated wastewater and breeding wastewater for domestication, and precisely controlling water inlet conditions, so as to realize rapid starting of anaerobic ammoxidation. By utilizing the efficient adhesion performance of a filling material and through variation of control conditions at different stages, and the method is capable of accelerating domestication process of microbes and culturing stable anaerobic ammonium oxidation bacteria flora within 2-3 months, and is large in biomass, rapid in starting process and good in processing effect. The method is capable of processing low-concentration simulated waste water, and also is capable of realizing stable efficient processing of high-concentration breeding wastewater through a period of domestication, and gives play to dual effects of reducing total nitrogen and COD.

Description

technical field [0001] The invention relates to a method for rapidly starting anaerobic ammonia oxidation by using an anaerobic filter, belonging to the technical field of sewage treatment. Background technique [0002] Anaerobic ammonium oxidation (ANAMMOX) process is a new type of biological denitrification process. It is a biological reaction with ammonia as the electron donor and nitrite as the electron acceptor. The reaction product is nitrogen. The field of nitrogen has good application prospects. Compared with traditional nitrification and denitrification, anaerobic ammonium oxidation is a more efficient and economical denitrification method. It can not only save more than 50% of energy and 100% of organic carbon sources, but also reduce greenhouse gas emissions. It has many incomparable advantages such as low oxygen consumption, no need to add carbon source, low sludge production and no secondary pollution, which has aroused great interest of researchers at home and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/28
CPCC02F3/2826C02F2101/16C02F2203/004
Inventor 姚利郭洪海付龙云杨光王艳芹曹德宾宋效宗
Owner INST OF AGRI RESOURCES & ENVIRONMENT SHANDONG ACADEMY OF AGRI SCI
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