Method for starting salt tolerant anammox reactor

A technology of anaerobic ammonium oxidation and reactor, which is applied in chemical instruments and methods, anaerobic digestion treatment, biological water/sewage treatment, etc., can solve problems such as difficult actual production of salt tolerance and complex components, and achieve secondary Effect of less pollution and widening application range

Inactive Publication Date: 2010-12-01
DALIAN OCEAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, seawater is a kind of natural high salt water, its salinity is generally 30-35‰, not only contains K + 、Na + , Cl - ions, also contains Ca 2+ , Mg 2+ 、Sr 2+ 、Br - , CO 3 2- (HCO 3 ...

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] a. Using the existing anammox reactor with an effective volume of 5L, the inoculated sludge was taken from the anoxic pool of the sewage treatment plant in Dalian Development Zone. The properties of the inoculated sludge: MLSS is 69.12g / L, and MLVSS is 21.33g / L. Reactor start-up conditions: anaerobic, temperature 33±0.5°C, HRT for 2 days to change NH 4 Cl and NaNO 3 Dosage to adjust water inflow NH 4 + -N and NO 2 - -N concentrations are all 60-70mg / L. Simultaneously monitor effluent NH 4 + -N and NO 2 - -N concentration, after 174 days of cultivation, the bacterial film attached to the reactor carrier changed from black to reddish brown, and the effluent NH 4 + -N and NO 2 - -N concentrations are lower than 10mg / L;

[0011] b. Increase influent NH 4 + -N and NO 2 - -N concentration is 70~100mg / L, adjust the HRT to 1.5 days, continuously cultivate for 20 days, quantify the salinity of seawater with a salinity meter, then add seawater to the influent, ...

Embodiment 2

[0013] a. Using the existing anammox reactor, the effective volume is 6L. The seed sludge is taken from the biochemical pool of Dalian Lingshui Sewage Treatment Plant. The properties of the seed sludge: MLSS is 1.65g / L, MLVSS It is 0.687g / L. Reactor startup conditions: anaerobic, temperature 33±0.5°C, HRT for 2 days to change NH 4 Cl and NaNO 3 Dosage to adjust water inflow NH 4 + -N and NO 2 - -N concentrations are all 60-70mg / L. Simultaneously monitor effluent NH 4 + -N and NO 2 - -N concentration, after 156 days of cultivation, the bacterial film attached to the reactor carrier changed from black to reddish brown, and the effluent NH 4 + -N and NO 2 - -N concentrations are lower than 10mg / L;

[0014] b. Increase influent NH 4 + -N and NO 2 - -N concentrations are all 100-160mg / L, adjust HRT to 1 day, continue to cultivate for 50 days, use a salinity meter to quantify the salinity of seawater, then add seawater to the influent, and adjust the influent with ...

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PUM

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Abstract

The invention discloses a method for starting salt tolerant anammox reactor applied to biological nitrogen removal of high salinity waste water (such as mariculture waste water and aquatic product processing waste water). Inoculated sludge is placed into an anammox reactor, the inoculated sludge comprises 1.65-69.12g/L of MLSS and 0.687-21.33g/L of MLVSS, operational conditions include that anaerobic environment is provided, temperature is 32.5-33.5 DEG C, HRT is two days, the concentrations of NH4+-N and NO2--N in inlet water are all 60-70mg/L and continuous culture is carried out until the concentrates of NH4+-N and NO2--N in effluent are all lower than 10mg/L; the concentrates of NH4+-N and NO2--N in inlet water are improved to be 70-160mg/L, HRT is 1-1.5 days, continuous culture is carried out for 20-50 days, the salinity of inlet water is regulated to be 5g/kg, 10g/kg, 15g/kg, 20g/kg, 25g/kg and 30g/kg respectively by virtue of sea water (the salinity of full sea water is 32g/kg), and continuous culture is respectively carried out on inlet water at each salinity until the concentrations of the NH4+-N and NO2--N in effluent are all lower than 20mg/L.

Description

Technical field: [0001] The invention relates to a method for starting an anammox reactor, in particular to a salt-tolerant anaerobic ammonium oxidation reaction that can be applied to biological denitrification of high-salinity wastewater (such as marine aquaculture wastewater, aquatic product processing wastewater, etc.) How to start the device. Background technique: [0002] In recent years, the biological denitrification process of anaerobic ammonium oxidation wastewater has attracted widespread attention in the field of sewage treatment at home and abroad because of its high efficiency, economy, and less secondary pollution. At present, the applied anammox reactor is generally cylindrical, with built-in non-woven fabric strip packing, and a sampling port on the side, with an effective volume of 5L to 6L. The reactor is kept insulated by a constant temperature water bath jacket, and the water is continuously pumped by a BT-200 constant flow pump. During the reaction pr...

Claims

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Application Information

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IPC IPC(8): C02F3/28C02F3/34
Inventor 刘长发张蕾徐岩朱学惠朱利军
Owner DALIAN OCEAN UNIV
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