Folding layered biofilter containing purification system and method for purifying water bodies by using same

Abstract

The invention relates to a biofilter containing purification system and a method for purifying water bodies by using the same. A purification system with a folding layered biofilter comprises a nursery pond or a culture pond (a), a biofilter (b) and a backwash pond (c), wherein a partition plate is arranged in the biofilter (b), and due to the partition plate, water in the biofilter (b) flows from the upper layer to the lower layer in a folding mode; the partition plate is provided with a sinkable packing, and the upper layer of a water body of the biofilter (b) is provided with floating packing. The invention just relates to a biofilter, and through improving the biofilter and dividing the biofilter into an upper layer and a lower layer by using the partition plate, the water body space of the biofilter is effectively used, so that the area is saved and the operation is convenient. According to the invention, when a biofilm is cultured, sludge scraped from the wall and bottom of the culture pond is also adopted, so that the growth and reproduction of particular nutritive salt degraded bacteria in a water body are facilitated, the biofilm culturing time is short, and the running is stable.

Description

technical field [0001] The invention relates to a purification system and a method for purifying water, in particular to a purification system with a biofilter and a method for purifying water using the system. Background technique [0002] The biofilm method is a biofilm formed by the growth and reproduction of wastewater on carrier fillers by aerobic microorganisms, protozoa, metazoans, etc., to adsorb and degrade organic matter, so that wastewater can be purified. Before the 1950s, the biofilm method has not been paid attention to by people. The main reason is that the earliest biofilm method uses gravel as filler. The land area is huge. In the 1950s, the development of the plastics industry and the introduction of plastic fillers into the biofilm treatment system led to many significant developments in the biofilm process, and many new types of biofilm process equipment emerged. At the end of the 1970s, in order to enhance the mass transfer in the biofilm reactor, the ...

AI Technical Summary

Problems solved by technology

This invention involves many biofilters, at least 4 anaerobic and aerated biofilters, which occupy a large area, and there are many water connection pipes, complex structure, and difficult operation and maintenance

In this invention, the cultivation of biofilm is non-directional cultivation, and the cultivation time is long. Due to aeration, the growth controllability of aerobic bacteria is poor, so that the biofilm is easy to age. When the biofilm is aging, the processing capacity of the biofilter decreases, and the purification The effect is difficult to maintain for a long time, and the biofilm is difficult to re-hang the film culture

Images