Maintenance-free rural domestic sewage treatment device

Abstract

The invention discloses a maintenance-free rural domestic sewage treatment device, and relates to the field of domestic sewage treatment. The maintenance-free rural domestic sewage treatment device comprises a sand settling pond, a pump I, a reactor I, a pump II, a reactor II, a pump III, a drain pipe, an electric control cabinet and a remote monitoring system. The electric control cabinet is connected with the pump I, the pump II and the pump III, the sand settling pond, the pump I, the reactor I, the pump II, the reactor II, the reactor III and the drain pipe are sequentially connected withone another, the reactors are used for accommodating biological carriers, microorganisms can be attached to the biological carriers, and the remote monitoring system is used for monitoring water levelprotection heights of the reactors. The maintenance-free rural domestic sewage treatment device has the advantages that water can be uniformly distributed without dead spaces, can be quickly drainedand re-aerated and can be sufficiently uniformly re-aerated, biological film cultivation procedures can be omitted, the maintenance-free rural domestic sewage treatment device can run in a programmedmanner, and full-automatic unattended operation further can be implemented; the water level protection heights of the reactors can be remotely monitored, so that the biological carriers can be timelyreplaced or cleaned, and the maintenance-free rural domestic sewage treatment device is high in organic load impact resistance.

Description

technical field [0001] The invention relates to the field of domestic sewage treatment, in particular to a maintenance-free rural domestic sewage treatment device. Background technique [0002] Rural sewage has the characteristics of wide dispersion, multiple sources, rapid growth, complex sewage components, and large changes in water quality and water volume. As the country pays more and more attention to the "three rural" issues, it puts forward the requirement of building a new type of countryside with ecological civilization, but the situation of domestic sewage treatment in rural areas is still not optimistic. The rural population is mainly concentrated in villages and towns, the residence is scattered, the cost of sewage collection is high, and the operation and management technology of sewage treatment plants is weak, all of which limit the application of urban sewage treatment models in rural areas. In addition, there are many fields around rural sewage sources. If ...

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Problems solved by technology

[0003] The existing methods suitable for rural domestic sewage treatment mainly include the following: (1) Anaerobic biogas digesters: domestic sewage purification biogas digesters are developed on the basis of septic tanks and biogas digesters, which are beneficial to the secondary use of energy. re-use, but its infrastructure costs are high, operation and management requirements are highly technical, biogas slurry can only be used as organic liquid fertilizer, and further treatment is required if it is to be discharged or reused

(2) Land treatment technology: its infrastructure cost is low, and it is easy to maintain and manage, but it occupies a large area and there is no effective solution to the problem of filling blockage.

(3) Stabilization pond treatment technology: At present, the most widely used is the stabilization pond for artificially planting aquatic plants or cultivating aquatic plants, which is characterized by low operation and maintenance costs, but the system has low organic load, large floor area, and low energy consumption process Restricted by terrain conditions, the treatment effect is greatly affected by climate conditions, and lacks universal applicability

(4) Biofilm method: The biofilm method has strong impact resistance and can handle low-concentration sewage, but the water distribution and uneven aeration caused by the plugging of the filler will affect the treatment efficiency and effect, and the biofilm method has high requirements for operation technology and maintenance management. Technical management capabilities have a great impact on effluent water quality, and some processes (such as biological turntables) have poor sanitation conditions

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