Method for quickly relieving activity inhibition of heavy metals on anaerobic ammonia oxidation sludge

An anaerobic ammonia oxidation and activity inhibition technology, applied in chemical instruments and methods, sludge treatment, water/sludge/sewage treatment, etc., can solve the problems of cell membrane damage, long recovery time, and complex heavy metal-containing wastewater components To achieve the effect of improving denitrification activity and alleviating the inhibitory effect
CN104445845AActive Publication Date: 2015-03-25HANGZHOU NORMAL UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HANGZHOU NORMAL UNIVERSITY
Publication Date
2015-03-25

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Abstract

The invention discloses a method for quickly relieving activity inhibition of heavy metals on anaerobic ammonia oxidation sludge. The method comprises the following steps: washing the anaerobic ammonia oxidation sludge polluted by heavy metals by distilled water, adding the washed sludge into a closed container, adding a cleaning liquid with the pH value being 7.4-7.60, and introducing argon to remove oxygen and closing; then, putting into a constant temperature table at 30-35 DEG C and oscillating the table in the shade at a speed of 150-200rpm; and finally, centrifugalizing the oscillated mud-water mixture and taking the precipitate, namely the anaerobic ammonia oxidation sludge which relieves heavy metal inhibition. The method disclosed by the invention can be used for effectively relieving the inhibitory effect of heavy metals on anaerobic ammonia oxidation sludge, effectively removing heavy metals adsorbed to the surface of sludge and quickly improving the denitriding activity of anaerobic ammonia oxidation bacteria.
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Description

(1) Technical field

[0001] The invention relates to a method for improving the activity of anaerobic ammonium oxidation sludge, in particular to a method for rapidly alleviating the inhibitory effect of heavy metals on the activity of anaerobic ammonium oxidation sludge. (2) Background technology

[0002] In recent years, excessive discharge of ammonia-containing wastewater has caused a series of ecological and environmental problems such as eutrophication of water bodies. The efficient and low-consumption treatment of ammonia-containing wastewater has always been a difficult problem in the field of sewage treatment.

[0003] The ANAMMOX process has become one of the most economical new biological nitrogen removal processes due to its advantages of no need for additional organic carbon sources, high denitrification load, low operating costs, and small footprint. After more than 20 years of research and application, ANAMMOX technology has been successfully applied in the fie...

Claims

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