Landscape ecological treatment system

Abstract

The invention relates to a landscape ecological treatment system which is characterized in water distribution ditch and wetland bed multisection design. The landscape ecological treatment system comprises a pretreatment system, an anaerobic fermentation tank, a water distribution ditch, a wetland bed, a water collection ditch (9), a water distribution system and a system filler, wherein the pretreatment system comprises a coarse artificial grid and a fine artificial grid; the anaerobic fermentation tank comprises an anaerobic tank first section (1) and an anaerobic tank second section (2); the water distribution ditch comprises a water distribution ditch A (3), a water distribution ditch B (4) and a water distribution ditch C (5); the wetland bed comprises a wetland bed A (6), a wetland bed B (7) and a wetland bed C (8); the first section water distribution ditch and the first section wetland bed are arranged outside the anaerobic tank; and the water collection ditch (9) is arranged at the outermost end. In the water distribution ditch of the system, the water distribution system is arranged in the tank, the effluent water of the anaerobic tank is uniformly distributed into the wetland beds of the landscape ecological treatment system through the water distribution system, the water distribution ditch and wetland bed are designed in a multisection mode, the sewage stays in the landscape ecological treatment system for about 5-7 days, the effluent water of the system enters the water collection ditch, and the sewage of the water collection ditch is discharged after reaching the standard.

Description

technical field [0001] The invention belongs to sewage treatment equipment, in particular to a landscape ecological treatment system. Background technique [0002] Industry status: With the deterioration of the global environment and the attention of environmental protection departments at all levels, domestic sewage pollution control has become an urgent task. my country's water supply and drainage practice shows that, on the one hand, there is a serious shortage of water resources; on the other hand, a large amount of waste water is not utilized, causing pollution after discharge. Coal mining areas are no exception. In some mining areas in Northwest China, the problem is more serious. The precipitation in Northwest China is only 100-200mm, which is only 1 / 6-1 / 3 of the national annual precipitation. The distribution of underground resources in the country varies greatly between the north and the south, accounting for 69% in the south and only 31% in the north, and most of ...

AI Technical Summary

Problems solved by technology

Northwest mining areas are mostly located in mountainous areas, and water resources are even more scarce. The water resources inside the mining area can only be used as small or temporary water sources, and the concentrated permanent water source needs to be solved from the outside of the mining area. The distance is long, the height difference is large, and the cost of water supply is high.

In addition, the surface water in mountainous areas is mostly intermittent rivers, the flow rate varies greatly in dry and flood seasons, and the dilution capacity of annual flow rate is poor, while mines, coal washing plants, and auxiliary enterprises are generally distributed along both sides of the river, and treated or untreated domestic and industrial Sewage is discharged to Hanoi, causing varying degrees of pollution

Images