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Start-up and control method of semi-nitrosation process for urban sewage treatment

A technology of urban sewage and control methods, applied in water treatment parameter control, biological water/sewage treatment, water/sludge/sewage treatment, etc., can solve the problems of poor feasibility and low efficiency of semi-nitrification process, and achieve low equipment requirements , suitable for a wide range of effects

Active Publication Date: 2021-09-21
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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  • Start-up and control method of semi-nitrosation process for urban sewage treatment
  • Start-up and control method of semi-nitrosation process for urban sewage treatment
  • Start-up and control method of semi-nitrosation process for urban sewage treatment

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Embodiment Construction

[0033] For ease of understanding, the semi-nitrification process of the urban sewage treatment will be described below, which is understood, and these examples are intended to illustrate the scope of the invention.

[0034] The simulated urban sewage of manually formulated as the 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] Trace elements composition (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 entire reaction system includes a sewage storage region 10, and the sewage storage region 10 is introduced into the reactor pump 20, and the integrated continuous stream reactor 30 connected to the water pum...

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Abstract

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. It includes the following steps: inoculation; water intake; realization of nitrosation function; maintenance of semi-nitrosation. Compared with the existing technical solutions, the technical solution provided by the invention has the following advantages: quick start, low equipment requirements and wide application range.

Description

Technical field [0001] The present invention belongs to the technical field of waste water treatment, in particular, to semi-nitrification process and start control method of an urban sewage treatment. Background technique [0002] ANAMMOX (ANaerobic AMMonium OXidation, referred to as of ANAMMOX) refers to the reaction, under anaerobic conditions, anammox bacteria to CO 2 As carbon source NO 2 - -N and NH 4 + -N biological processes generate nitrogen as electron acceptor and an electron donor. Traditional nitrification - denitrification technology compared sewage biological nitrogen removal technology is based on anaerobic ammonia oxidation (ANAMMOX) reactions have nitrogen removal efficiency, stable operation, energy saving and environmental friendliness, is considered to be the most one of sewage with biological nitrogen removal technology for sustainable development. [0003] For containing NH 4 + Processing, sewage -N ANAMMOX process depends on the nitrosation (also called...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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