Village and town sewage treatment apparatus

Abstract

The present invention provides a village and town sewage treatment apparatus comprising an anaerobic tank, an aerobic tank, a sedimentation tank, a filter material, an adsorption filler and a sludge concentration tank. A water inlet of the village and town sewage treatment apparatus of the present invention is arranged opposite to a water outlet of a sludge back flow, so that a water body can be disturbed. An aeration pipeline at the bottom of the aerobic tank is provided with flowing holes, bubbles float upwards and cause the water body to roll up and down, thus mud and water are fully mixed,a mixing device is omitted and cost is saved. Two groups of parallel partition plates are arranged in the aerobic tank and play a role of reinforcing ribs, so that the tank body is prevented from deforming caused by water pressure, and also an effect of alleviating the water speed is exerted and an aerobic reaction is fully finished. A flow-dispersing cap at the outlet of a water inlet pipe of the sedimentation tank facilitates uniform distribution of wastewater entering the sedimentation tank, and through combination of a sedimentation tank sludge hopper in a shape of an inverted right square pyramid frustum and a peripherical water outlet weir arranged on the sedimentation tank, the sedimentation tank runs best. Through arrangement of an overflow pipe and a back flushing structure, thesystem runs simply and efficiently.

Description

technical field [0001] The invention relates to a village and town sewage treatment device, which is applied to the treatment and disposal of distributed village and town sewage. Background technique [0002] With the increase of population, the accelerated process of urbanization and the implementation of the total control measures of industrial point source pollution, residential pollution will gradually replace industrial pollution as the number one pollution factor of water bodies. Centralized sewage treatment is undoubtedly the right choice for urban high-level network collection coverage, but in villages and towns, the centralized pipeline network cannot be reached, and even if it can be extended along the main road, the connection costs and long-distance sewage pumping station transportation and operating costs are very high. The waste water is naturally infiltrated into the soil in front of the house and behind the house, and the feces are stored in various septic ta...

AI Technical Summary

Problems solved by technology

Centralized sewage treatment is undoubtedly the right choice for urban high-level network collection coverage, but in villages and towns, the centralized pipeline network cannot be reached, and even if it can be extended along the main road, the connection costs and long-distance sewage pumping station transportation and operating costs are very high. High, the waste water is naturally infiltrated in the soil in front of the house and behind the house, and the feces are stored in various septic tanks for local treatment, which seriously pollutes the environment and greatly increases the cost of sewage treatment per unit

On the other hand, the environmental protection of villages and towns has been neglected for a long time, and the pollution of domestic water in villages and towns has become more serious. With the continuous advancement of new villages and towns, the problem of water pollution in villages and towns has become increasingly prominent, which not only seriously affects and restricts the development of agriculture, farmers' income and rural areas. Moreover, it has had a relatively large negative impact on the living environment, economic and social development of the vast villages and towns, and has become an important restrictive factor for the construction of new villages and towns.

The existing village and town sewage treatment equipment and equipment are expensive, and the treatment cost-effectiveness is low, so it is difficult to implement in villages and towns

Images