SBBR modular sewage processing equipment and its intelligence control system and method

Abstract

The invention relates to the technical field of sewage processing and recycling and specifically discloses SBBR modular sewage processing equipment and its intelligence control system and method. The method comprises the following steps: Step a, inflowing stage: aeration scale factor K1 is obtained by detecting water level difference between any water level of an anaerobic pond higher than a water inlet and the lower edge of the water inlet; Step b, when K1 is greater than 0.5, an aeration stage starts, wherein the aeration stage is divided into six sections; Step c, primary sedimentation stage; Step d, sludge returning stage; Step e, secondary sedimentation stage: mud and water are separated in an aerobic biochemical pool and sludge settles to form a mud-water separated interface; Step f, draining stage; and Step g, standing stage: standing time t7 is less than or equal to 1 hour, and waiting for the next new operation cycle. By the modular design, only one blower fan is needed, and through an original pneumatic means, present engineering and structural problems are well solved. According to the utility model, biological process requirements can be met, and under the most energy-saving and economical condition, sewage processing costs can be reduced.

Description

technical field [0001] The invention relates to the technical field of sewage treatment and reuse, in particular to a Sequencing Batch Biofilm Reactor (SBBR: Sequencing Biofilm Batch Reactor) modular sewage treatment equipment, and a control system and method for SBBR modular sewage treatment. Background technique [0002] Sequencing Batch Reactor Activated Sludge Process (SBR: Sequencing Batch Reactor Activated Sludge Process) is an activated sludge sewage treatment technology operated by intermittent aeration, also known as sequencing batch activated sludge process. SBR sequence batch activated sludge wastewater treatment process and equipment are currently widely used in small towns and decentralized sewage stations such as factories, mines, residential areas, tourist attractions, schools, hospitals, etc. far away from urban sewage pipe networks. Yet there are following problems in this technique and equipment: [0003] 1. Since the aerobic biochemical tank and the sedim...

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Problems solved by technology

[0003] 1. Since the aerobic biochemical tank and the sedimentation tank are in the same body, there is no reflux mechanism, so the denitrification and phosphorus removal effect of the currently widely used SBR process equipment is not good; in the same biochemical system, the phosphorus removal bacteria and denitrification bacteria in the same tank There is a relationship of competition and mutual inhibition, so the total phosphorus index of the treated water is difficult to achieve the ideal state

[0004] 2. Existing SBR equipment usually adopts an integrated configuration. For occasions such as decentralized sewage stations in villages and towns, steel or glass fiber reinforced plastic structure bodies and concrete structures are often used. Due to the difficulty of road transportation in villages and towns, the civil construction period is long, and management is difficult and costly Due to the constraints of many problems such as high construction safety and many hidden dangers in construction, the sewage station infrastructure investment using SBR process equipment is relatively large, and the construction period is long, so that the integrated SBR equipment lacks competitive advantages.

[0005] 3. Small towns and other small-scale sewage treatment facilities generally lack the operation and management of environmental protection professionals, so there are common problems such as many system failures, difficult maintenance, low efficiency, large consumption, high operating costs, and difficulty in meeting discharge standards. Some sludge process systems may even cause sludge bulking and fail to operate

[0006] 4. For the SBR process equipment currently used, the setting of the sequential batch working cycle is fixed. Regardless of the amount of sewage water treated in each cycle, the aeration volume and aeration time specified by the system remain unchanged.

Therefore, for the changing water volume, the aeration rate and hydraulic retention time are constant, the cost of sewage treatment is rigid, and energy saving and consumption reduction cannot be achieved

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