Method for starting and controlling semi-nitrosation process for treating urban sewage

A technology of urban sewage and control methods, which is applied in water treatment parameter control, biological water/sewage treatment, water/sludge/sewage treatment, etc., can solve the problems of low efficiency and poor feasibility of semi-nitrification process, and achieve species diversity High, low equipment requirements, solve the effect of long separation time

Active Publication Date: 2019-07-26
SUZHOU UNIV OF SCI & TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The invention provides a semi-nitrosation process start-up and control method for urban sewage treatment, which is used to solve the problem of low efficiency and poor feasibility of the current semi-nitrosation process for urban sewage treatment under low temperature conditions

Method used

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  • Method for starting and controlling semi-nitrosation process for treating urban sewage
  • Method for starting and controlling semi-nitrosation process for treating urban sewage
  • Method for starting and controlling semi-nitrosation process for treating urban sewage

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Embodiment Construction

[0033] For ease of understanding, the semi-nitrosation process start-up and control method of the described urban sewage treatment will be described below in conjunction with the examples. It should be understood that these examples are only used to illustrate the present invention and are not intended to limit the scope of the present invention.

[0034] Taking artificially prepared simulated urban sewage as the treatment object, the specific water quality is as follows (per liter): NH 4 + -N is 0.2gNH 4 Cl, 0.3g NaHCO 3 ,0.05K 2 HPO 4 ,0.03g K 2 HPO 4 ,0.02g CaCl 2 2H 2 O, 0.025g MgSO 4 ·7H 2 O and 1ml trace elements;

[0035] Composition of trace elements (per liter): 15g EDTA, 0.43g ZnSO 4 ·7H 2 O, 0.24g CoCl 2 ·6H 2 O, 1.0gMnCl 2 4H 2 O, 0.25g CuSO 4 ·5H 2 O, 0.22g (NH 4 ) 6 Mo 7 o 24 4H 2 O, 0.20gNiCl 2 ·6H 2 O, 0.09gHNaSeO 3 , 0.014g H 3 BO 3 , 0.054g Na 2 WO 4 2H 2 O.

[0036] like figure 1 As shown, the whole reaction system includes a...

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Abstract

The invention belongs to the technical field of sewage treatment, and particularly relates to a method for starting and controlling a semi-nitrosation process for treating urban sewage. The method comprises the following steps: inoculating; water feeding; fulfilling of a nitrosation function; and semi-nitrosation maintenance. Compared with the prior art, the technical scheme provided by the invention has the advantages of quick start, low equipment requirement and wide application range.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment, and in particular relates to a semi-nitrosation process start-up and control method for urban sewage treatment. Background technique [0002] Anaerobic ammonium oxidation (ANaerobic AMMonium OXidation, referred to as ANAMMOX) reaction means that under anaerobic conditions, anaerobic ammonium oxidizing bacteria 2 as carbon source, with NO 2 - -N and NH 4 + -N is the electron acceptor and the biological process of producing nitrogen from the electron donor, respectively. Compared with the traditional nitrification-denitrification biological nitrogen removal technology, the sewage biological nitrogen removal technology based on the anaerobic ammonium oxidation (ANAMMOX) reaction has the advantages of high nitrogen removal efficiency, stable operation, energy saving, and environmental friendliness. One of the most sustainable sewage biological denitrification technologies. [0003] For...

Claims

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Application Information

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IPC IPC(8): C02F3/12C02F3/30C02F101/16C02F101/30
CPCC02F3/12C02F3/307C02F2101/16C02F2101/30C02F2209/14C02F2209/22C02F2209/38C02F2209/40C02F2209/44Y02W10/10
Inventor 刘文如阴方芳沈耀良王建芳吴鹏
Owner SUZHOU UNIV OF SCI & TECH
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