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Quick starting method of biological membrane system

A biofilm system and quick-start technology, applied in chemical instruments and methods, biological water/sewage treatment, water pollutants, etc., can solve the problems of affecting the growth of beneficial microorganisms, no treatment effect of total nitrogen, production and operation burden, etc., to achieve Eliminate operating electricity costs, save purchase costs, and reduce operating costs

Active Publication Date: 2020-12-04
深圳市广汇源环境水务有限公司
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

However, the above-mentioned process is cumbersome and cumbersome to operate. After the SBR reactor is pre-coated with film, it needs to be transferred to a river channel simulated biofilm reactor equipped with an aerator for domestication.
[0006] The activated sludge used in the above-mentioned related technologies is used for film hanging. The activated sludge contains many microorganisms that cannot degrade pollutants, and the sludge concentration is 3000-6000mg / L, these microorganisms will multiply in large quantities in the sewage, resulting in an increasing concentration of sludge in the reaction equipment. If not discharged in time, it will affect the growth of beneficial microorganisms. Therefore, it is necessary to discharge the sludge regularly. The current treatment fee for the remaining sludge is 500-700 yuan / ton, which brings a burden to the production and operation of the enterprise
Moreover, the above-mentioned related technologies can only treat the ammonia nitrogen in the sewage, and have no treatment effect on the total nitrogen in the sewage.

Method used

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  • Quick starting method of biological membrane system
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  • Quick starting method of biological membrane system

Examples

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Embodiment 1

[0047] A quick start-up method of a biofilm system, comprising the following process steps:

[0048] Step 1. Preparation of the culture environment: first fill the anoxic pool and the aerobic pool with fillers, and then fill up with the sewage to be treated; the fillers suspended in the anoxic pool and the aerobic pool are all carbon fiber fillers, and the filler density is 300g / m 2 , The effective volume of the anoxic pool of the present embodiment is 50L, and the effective volume of the aerobic pool is 100L.

[0049] Step 2, addition of bacteria agent: add 25g denitrifying bacteria agent to the anoxic pool, add 50g nitrifying bacteria agent to the aerobic pool; the denitrifying bacteria agent is Pseudomonas stutzeri BNCC-221999, Micrococcus luteus BNCC -139548, Achromobacter denitrifying bacteria BNCC-138371, the first biological enzyme and the compound of nutrient salt according to the mass ratio of 1:1:3:2:1; the nitrifying bacteria agent is Nitrosomonas CGMCC-11865, nit...

Embodiment 2

[0058] A quick-start method for a biofilm system, comprising the following process steps:

[0059] Step 1. Preparation of the culture environment: first fill the anoxic pool and the aerobic pool with fillers, and then fill up with the sewage to be treated; the fillers suspended in the anoxic pool and the aerobic pool are all carbon fiber fillers, and the filler density is 400g / m 2 , the effective volume of the anoxic pool of the present embodiment is 15m 3 , the effective volume of the aerobic pool is 45m 3 .

[0060] Step 2, addition of bacteria agent: add 7.5kg denitrifying bacteria agent to the anoxic pool, add 15kg nitrifying bacteria agent to the aerobic pool; the denitrifying bacteria agent is Pseudomonas stutzeri BNCC-221999, Micrococcus luteus BNCC-139548, Achromobacter denitrifying bacteria BNCC-138371, the first biological enzyme and the compound of nutrient salt according to the mass ratio of 1:1:3:2:1; the nitrifying bacteria agent is Nitrosomonas CGMCC-11865, ...

Embodiment 3

[0069] The difference between this embodiment and embodiment 1 is that the packing density of this embodiment is 200g / m 3 , the concentration of dissolved oxygen in the aerobic pool of this embodiment is 2.5 mg / L, and the sewage treatment effect of this embodiment is equivalent to that of Example 1.

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Abstract

The invention relates to the field of biological denitrification treatment of municipal sewage, riverway overflow sewage and other water bodies, in particular to a quick starting method of a biological membrane system, which comprises the following steps: 1, preparation of a culture environment: firstly, fully hanging fillers in an anoxic tank and an aerobic tank, and then fully filling sewage tobe treated, 2, addition of a microbial inoculum: adding a denitrifying microbial inoculum into the anoxic tank, and adding a nitrifying microbial inoculum into the aerobic tank, 3, dissolving, diffusing and stuffy-aerating of the microbial inoculum, 4, expanding culture of the microbial inoculum, and 5, stable treatment on the sewage: after the expanding culture of the microbial inoculum is completed, continuously feeding water and refluxing to remove nitrogen-containing pollutants in the sewage. The technical scheme provided by the invention has the advantages of short biofilm culturing time,no residual sludge discharge, low operation cost, good pollutant removal effect, stable effluent quality, strong impact load resistance and the like.

Description

technical field [0001] The application relates to the field of biological denitrification treatment of municipal sewage, river overflow sewage and other water bodies, and in particular relates to a quick start-up method of a biofilm system. Background technique [0002] The water quality of municipal sewage and river overflow sewage is relatively stable, but it is turbid, deep and foul-smelling, slightly alkaline, with high nitrogen content, and generally does not contain toxic substances. Municipal sewage is mainly water discharged from living facilities such as kitchens, toilets, bathrooms and laundry rooms of households, public facilities and factories. River overflow sewage is usually composed of a mixture of municipal pipe network sewage and rainwater. The composition of pollutants It is basically the same as municipal sewage, but the concentration is slightly lower than that of municipal sewage. [0003] Activated sludge process is a common process for sewage treatmen...

Claims

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Application Information

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IPC IPC(8): C02F3/30C02F3/34C02F101/16
CPCC02F3/30C02F3/34C02F2101/16C02F2103/007C02F2209/16Y02W10/10
Inventor 张敏雒翠彭东升尹娟张扬李红桔王正川王澜王颖马桂敏叶运顺刘训平冯蒙蒙吴秋琴
Owner 深圳市广汇源环境水务有限公司