Immobilized microbial filter bed

Abstract

The invention discloses an immobilized microbial filter bed, which comprises a bed body and a water collecting tank; a water inlet system comprises a water inlet pipe and inflow water distribution pipes in a shape like the Chinese character 'Feng'; a water outlet system comprises a water outlet pipe; a back flushing system comprises a back flushing water inlet pipe, a back flushing water distribution pipe and a back flushing water outlet pipe; an aeration system comprises a gas inlet main pipe, two gas inlet branch pipes and gas distribution pipes in a shape like the inverted Chinese character'Fei'; a biological film sequentially comprises nano-scale hydrophilic polyurethane biological filler, fiber ball biological filler, porous biological suspension ball filler, first-grade biological ceramsite and second-grade biological ceramsite from top to bottom; an ecological system comprises an artificial floating island and aquatic plants; support steel plates are fixed above the bottom of the bed body; the back flushing water inlet pipe and the back flushing water distribution pipes are arranged at the bottom of the bed body; and the back flushing water outlet pipe passes through the left wall of the bed body. Microbial and ecological methods are adopted to treat black and odorous water, the operating cost is low, secondary pollution is avoided, modularized replication can be realized, the construction period is short, and the purifying effect is good.

Description

technical field [0001] The invention relates to the technical field of environmental protection, in particular to an immobilized microbial filter bed. Background technique [0002] In order to speed up the improvement of urban black and odorous water bodies, black and odorous water bodies are being treated in succession across the country. For this reason, many new technologies and methods have emerged in the field of black and odorous water treatment, such as: biological bacterial agent technology, biofilm reactor technology, ozone contact oxidation technology, biological filler technology, ecological floating bed technology, ecological restoration technology, etc. Black and odorous water treatment provides a strong basis. [0003] Biological agent technology is to spray biological agent directly to polluted open channels. The cost of this technology is high, and the effective bacteria cannot maintain a long-term and stable decontamination effect. It needs to be sprayed c...

AI Technical Summary

Problems solved by technology

Black and odorous water pollution mainly comes from domestic sewage, ground washing water and other mixed-flow water bodies. The pollution load of this water body far exceeds the self-purification ability of aquatic organisms. Simple recovery of aquatic organisms cannot guarantee water purification, and the removal rate of pollutants is low.

Images