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How to choose sludge reduction equipment?

2020-07-10

Sewage treatment is an environmental protection measure that we need to pay attention to. What kind of measures should we take when treating sewage? What kind of sludge reduction equipment should we use?

Since the core of sewage treatment is the biochemical part, we call the sewage treatment process specifically to refer to this part, such as touch oxidation method, SBR method, A/O method, etc. The selection of biochemical methods (including anaerobic and aerobic) to treat daily sewage is now an economical and applicable sewage treatment process. During treatment, different sludge reduction processes are selected according to the daily sewage water volume, water quality and site conditions. Has a decisive influence on capital contribution and operating costs. For many years, the secondary biological treatment of sewage in cities has mostly used the sludge method. It is a secondary biological treatment process widely used in countries all over the world. It has the advantages of high processing capacity and good effluent quality.

Now in the field of research and use of urban sewage treatment, the common problems are:

(1) The traditional sludge method is often used, which often requires high capital construction costs, high operating costs, high energy consumption, complicated handling, and sludge expansion. The process equipment cannot meet the requirements of low consumption.

(2) With the continuous stringent sewage discharge standards, the requirements for the discharge of nitrogen and other nutrients in the sewage are relatively high. The traditional sewage treatment processes with denitrification and denitrification functions are mostly based on the sludge method. Oxygen and aerobic reaction tanks are connected in series to form a multi-stage reaction tank. The intention of nitrogen removal is achieved by adding internal circulation. This is bound to increase the cost of infrastructure investment and energy consumption, and make operation management more complicated.

(3) At present, the treatment of urban sewage is mostly centralized treatment. The investment of the huge sewage collection system far exceeds the investment of the sewage treatment plant itself. Therefore, the construction of large sewage treatment plants concentrates the treatment of daily sewage and reuses the sewage. It is not necessarily a desirable plan from a perspective. Many places began to choose daily sewage treatment equipment, which has a good treatment of sewage.

I plan a reasonable plan for treatment according to the problems faced by the day’s sewage, and select appropriate sludge reduction equipment to allow our day’s sewage to be treated well, which will also bring great assistance to our day’s sustainable development. Provides us with a healthy living environment.

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