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Hydrolytic acidification-muct combination high-concentration organic wastewater treatment device and method

A technology of organic wastewater treatment and hydrolysis and acidification, which is applied in the field of wastewater treatment equipment and high-concentration organic wastewater treatment equipment, can solve the problems of high cost of excess sludge treatment and disposal, slow denitrification rate, and large amount of excess sludge, etc. Water treatment effect, improvement of removal rate, and effect of reducing treatment and disposal costs

Inactive Publication Date: 2016-03-02
JIANGSU FOOD & PHARMA SCI COLLEGE
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Problems solved by technology

[0004] Wastewater treated by MUCT process has the advantages of synchronous nitrogen and phosphorus removal, strong shock load resistance, low treatment cost, and easy management. However, with the increasingly serious nitrogen and phosphorus pollution and eutrophication of water bodies, the requirements for water treatment processes are also constantly improving. , the effluent nitrogen and phosphorus indicators have also put forward stricter requirements, and the shortcomings of the process have become increasingly prominent.
[0005] MUCT process is in A 2 An anoxic tank is added to the sludge return circuit in the anaerobic zone of the / O process to reduce the nitrate content in the return sludge, but the anoxic zone on the sludge circuit can only use endogenous metabolites as the carbon source for denitrification , the denitrification rate is very slow, and the required volume is large
Moreover, the amount of excess sludge produced by this process is large, the cost of excess sludge treatment and disposal is high, and it is easy to cause secondary pollution and other problems.

Method used

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  • Hydrolytic acidification-muct combination high-concentration organic wastewater treatment device and method
  • Hydrolytic acidification-muct combination high-concentration organic wastewater treatment device and method
  • Hydrolytic acidification-muct combination high-concentration organic wastewater treatment device and method

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Embodiment

[0029] Embodiment: Carry out waste water treatment according to the following steps

[0030] (1) Inoculate the activated sludge from the aeration tank from the municipal sewage treatment plant into the hydrolytic acidification tank (1), inoculate the activated sludge from the sedimentation tank (6) into other MUCT pools, and domesticate the inoculated sludge , making the activated sludge MLSS value reach 5000mg·L -1 Above, the SV value is above 30; when the system is stable, the activated sludge MLSS value basically remains at 6200~6500mg·L -1 , SV value is 35~40;

[0031] (2) Flow the high-concentration organic wastewater from the pig farm into the hydrolytic acidification tank 1 with an effective volume of 120L, and start the agitator in the hydrolytic acidification tank, and make the wastewater undergo organic degradation reaction under the action of stirring. After the hydraulic retention time is 6 hours, The effluent mixture from the hydrolytic acidification tank 1 en...

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Abstract

The invention discloses a high-concentration organic wastewater treatment device and method combined with hydrolytic acidification-MUCT, which belongs to the technical field of wastewater treatment and environmental protection. The sludge return flow is designed to return the sludge part of the sedimentation tank to the hydrolysis acidification tank, improve the efficiency of wastewater treatment, reduce the amount of excess sludge, and effectively save the cost of excess sludge treatment and disposal.

Description

technical field [0001] The invention relates to a wastewater treatment device and method, in particular to a hydrolytic acidification-MUCT combined high-concentration organic wastewater treatment device and method, and belongs to the field of wastewater biological treatment. Background technique [0002] A 2 The / O process is relatively simple. The wastewater flows through the anaerobic tank, the anoxic tank, the aerobic tank and the sedimentation tank in sequence, and the sludge part of the sedimentation tank is returned to the anaerobic tank to achieve the effect of wastewater treatment. The wastewater first enters the anaerobic tank, and the facultative anaerobic bacteria convert the easily degradable organic matter in the wastewater into VFAs (volatilefattyacids). Aerobic phosphorus accumulating bacteria survive in an anaerobic environment, and another part of the energy is used by phosphorus accumulating bacteria to actively absorb VFAs and store PHB in the body. When...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/14C02F101/30
Inventor 蔡秀萍王启烁
Owner JIANGSU FOOD & PHARMA SCI COLLEGE
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