Bioactive compound filling material

A biologically active and composite filler technology, applied in the field of preparation, can solve the problems of activated sludge process sludge bulking, unstable denitrification and phosphorus removal, poor sludge separation characteristics, etc. Sludge treatment burden, low sludge yield effect

Inactive Publication Date: 2011-09-07
尹军
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are still some problems that need to be solved in the activated sludge process and its derivative process itself, which restricts its further promotion and application. For example, the activated sludge process is prone to sludge bulking, high sludge yield, and poor sludge separation characteristics. , Unstable denitrification and dephosphorization effects and odor pollution in the treatment process have always plagued the design and operation of sewage plants

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0012] 1. Preparation of Bioactive Composite Fillers

[0013] Stir sawdust, humic acid organic fertilizer, fly ash, excess activated sludge, clay and other materials according to a certain proportion, shape and dry, so that the specific gravity is 0.95-1, the length is 3-4cm, and the diameter is 1.0-1.5cm . In the process of preparing the bioactive composite filler, iron, magnesium compounds and cellulose can also be added.

[0014] 2. Set up sludge strengthening tank

[0015] In the sludge return section of the activated sludge sewage treatment system, a sludge strengthening tank is set up separately, and its volume should be determined according to the flow rate of the return sludge. There is a mud inlet pipe at the top of the pool, a mud discharge pipe at the middle and bottom, and a microporous aeration device at the bottom. The middle part of the sludge strengthening tank is a metal cage filled with biologically active fillers. The metal cage is divided into two parts,...

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PUM

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Abstract

The invention relates to preparation and application methods of a bioactive compound filling material and belongs to the technical field of sewage treatment in environmental engineering. In order to improve the biological characteristics of activated sludge in a biological sewage treatment system, a sludge enhancement pond is added to a sludge return section of a sewage treatment system based on activated sludge process, a special bioactive compound filling material is loaded in the pond to serve as a culture medium and a carrier of microorganisms, then a part of returned sludge in the sewage treatment system enters the sludge enhancement pond and stay for a while to fully contact the bioactive compound filling material, and subsequently the sludge returns to an aeration pond or coarse screen and a primary sedimentation pond used in activated sludge process according to different proportions. The invention has the positive effects of reducing the risk of sludge bulking, reducing the yield of sludge, eliminating odor in sewage and sludge treatment processes, and is suitable for the upgrading reconstruction of the conventional sewage treatment system based on activated sludge process.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment in the discipline of environmental engineering, and in particular relates to a method for preparing and using a biologically active composite filler. Background technique [0002] In the current technical field of sewage treatment, the activated sludge method is the most widely used sewage treatment process. However, there are still some problems that need to be solved in the activated sludge process and its derivative process itself, which restricts its further promotion and application. For example, the activated sludge process is prone to sludge bulking, high sludge yield, and poor sludge separation characteristics. , Unstable denitrification and dephosphorization effects and odor pollution in the treatment process have always plagued the design and operation of sewage plants. Since the activated sludge method is a sewage biological treatment technology with activated sludge as the ma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/12C02F3/10
CPCY02W10/10
Inventor 尹军赵可崔星华
Owner 尹军
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