Biological sewage treating process by means of fiber membrane fixed organism

A fiber membrane, biological technology, used in biological water/sewage treatment, sustainable biological treatment, water/sludge/sewage treatment, etc. No effect, etc., to achieve the effect of improving fecundity

Inactive Publication Date: 2007-11-07
普罗生物技术(上海)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] 2. The biofilm at the bottom is gradually mineralized, no longer active, and has no effect on the removal of pollutants in water
[0007] These two problems reduce the biofilm activity on rigid surfaces, therefore, a biological treatment process that can maintain a high biological activity must be sought

Method used

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  • Biological sewage treating process by means of fiber membrane fixed organism

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Embodiment

[0038] For a petrochemical wastewater pool, hooks were first installed on the pool wall and cylinder, suspended with nylon ropes, and fixed up and down with nylon ropes, so that the carrier can swing freely within the fixed range. The combined carrier has a single width of 1.2 meters and a sheet distance of 140mm.

[0039] As an advanced treatment section, after transformation, the water volume is 36,000m 3 / D, the average CODcr at the water inlet is 400mg / l, and the average CODcr at the water outlet is 50mg / l. Reclaimed water can be reused, and sewage can be treated normally within one week after installation.

[0040] The process of the invention is applicable to the treatment of urban and domestic sewage and various industrial sewage, especially for organic wastewater with strong impact and many refractory substances that are difficult to treat by traditional methods, and the use of the invention can avoid generating a large amount of excess sludge.

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Abstract

The biological sewage treating process by means of fiber membrane fixed organism includes the following steps: 1. weaving fibrous biological membrane carrier with Dacron filament and attaching active microbial sludge for sewage treatment to the surface of the fiber; and 2. setting the fibrous biological membrane carrier in anaerobic or aerobic reactor, and soaking the carrier in industrial sewage over aerator and basic device so that the ascending bubble can provide organism with sufficient oxygen. The present invention has high sewage treating efficiency, stable performance, low power consumption, long service life and other advantages.

Description

technical field [0001] The invention relates to a biological treatment process for sewage treatment, in particular to a biological treatment process for sewage treatment using fiber membrane biological fixation (FMB). Background technique [0002] A basic problem in the process of using biological methods to treat sewage is to solve the contradiction between the continuous treatment process and the treatment time and space, that is, the contradiction between the slow growth of microorganisms and the continuous inflow of sewage. In order to avoid the reduction of treatment efficiency caused by the loss of microbial flora or to improve treatment efficiency, various fillers are often used as biological carriers in the biological treatment process of sewage treatment. The existing ones are generally mesh fillers, spherical fillers, linear and two-dimensional fillers made of various plastics. [0003] The biofilm attached to the filler carrier in the biological treatment process...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/10
CPCY02W10/10
Inventor 李新张红岩陈伟清范敏
Owner 普罗生物技术(上海)有限公司
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