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Method for rapidly solving sticky sludge bulking problem

A sludge bulking and viscous technology, applied in the field of biochemical sewage treatment, can solve the problems of high economic cost, long recovery period, unstable operation effect, etc., achieve low economic cost, low recurrence rate, and solve the difficulty of sludge settlement Effect

Active Publication Date: 2014-08-13
中山公用水务投资有限公司
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Problems solved by technology

[0005] The purpose of the present invention is to propose a method to quickly solve the problem of sticky sludge bulking, and to solve the problems of long recovery period, high economic cost, and unstable operation effect after the sewage treatment plant suffers from the problem of sticky sludge bulking

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  • Method for rapidly solving sticky sludge bulking problem
  • Method for rapidly solving sticky sludge bulking problem
  • Method for rapidly solving sticky sludge bulking problem

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Embodiment Construction

[0020] The present invention will be further described below in conjunction with the accompanying drawings and the application examples in the sequence batch system.

[0021] like figure 1 Shown is a schematic diagram of the sequence batch device. The effective volume of the reactor is 12L, the height is 50cm, and the diameter is 17.5cm. Open and close to realize the automatic operation of the reactor. It runs 4 cycles per day, 6 hours per cycle. One cycle of the sequencing batch reactor consists of 10 minutes of anoxic stirring water intake, 170 minutes of aerobic aeration, 150 minutes of precipitation, 30 minutes of drainage and idle. The drainage ratio per cycle is 50%, the hydraulic retention time is 12 hours, and the sludge age is 20 days. The influent water is artificially distributed. The COD concentration in the influent water is 1000mg / L, the ammonia nitrogen concentration is 30mg / L, and the inorganic phosphorus concentration is 6mg / L. The distribution water also con...

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Abstract

The invention relates to a method for rapidly solving sticky sludge bulking problem and belongs to the field of biochemical wastewater treatment. For a sticky sludge bulking problem caused by a high organic load, a means that inflow water supply is diluted and an operation mode of a reactor is changed is adopted, so that a system operates under the conditions of low inflow water organic load and high substrate concentration gradient; the sludge settleability is controlled in real time and conditions are improved in real time by detecting parameters such as a sludge volume index, an extracellular polymeric substance and a Zeta potential in an operation process. Practice shows that the sludge settleability can be obviously improved by continuously operating the method for rapidly solving the sticky sludge bulking problem for 2-8 days; in a later operation process, recurrence of the sticky sludge bulking problem can be effectively prevented by improving an inflow water and operation mode of a system. The method for rapidly solving the sticky sludge bulking problem has the advantages of short period, low recurrence rate, low economic cost and small influence on sludge activity and can be taken as an alternative scheme for rapidly and efficiently solving the sticky sludge bulking problem in an activated sludge process system.

Description

technical field [0001] The invention relates to a method for quickly and effectively solving the problem of viscous sludge swelling which is common in the sewage treatment process of activated sludge method, belongs to the field of sewage treatment by biochemical method, and is applicable to urban sewage treatment plants of various scales and those using activated sludge. Industrial waste water treatment plant with sludge process. Background technique [0002] At present, most of the sewage treatment plants all over the country adopt the activated sludge sewage treatment process. The principle of the activated sludge method is to use the physiological characteristics of the activated sludge microorganisms to consume the pollutants in the sewage during the growth and metabolism process, so that the activated sludge and the sewage are fully mixed and contacted, and the microorganisms are used to quickly degrade the pollutants, and the separation of the sludge and water is achi...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/30
Inventor 彭永臻杨雄宋姬晨
Owner 中山公用水务投资有限公司
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