4 results about "Biological filter" patented technology

The invention discloses an ultrahigh-filtering-speed IV-class water upgrading standard transformation nitrogen and phosphorus removal device and a treatment process thereof. The device is formed by sequentially connecting an inner water inlet pore plate grid, an ultrahigh-filtering-speed nitrogen removal biological filter, an ultrahigh-filtering-speed dense medium loading efficient flocculation clarification tank and a clean water tank in series. According to the invention, the problem that a filter head of a traditional aerobic nitrification biological filter is easy to block due to fibrous impurities is solved, the problems of blockage, low filtering speed, high treatment load and low treatment load of an upward flow denitrification biological filter are solved, and the treatment effectof the dense medium and dense medium loaded efficient flocculation clarification tank is obviously superior to that of a traditional combined treatment device and process; the traditional process problem of efficient nitrogen and phosphorus removal is solved, the sewage containing high nitrate and inorganic phosphate can be deeply upgraded, the effluent can reach the IV-class water standard, and the method has great popularization and application value for sewage upgrading.

The present invention relates to a Sphingomonas sp. MD2 strain (KCTC 11845BP), a composition including the strain for decomposing methane or odor-producing compounds, a biocover or biofilter including the composition, a method for decomposing methane or odor-producing compounds using the composition, a system for decomposing methane or odor-producing compounds using the biocover or biofilter, and the use of the strain for decomposing methane or odor-producing compounds. According to the present invention, methane and odor can be effectively removed concurrently, and thus the cost required for the separate treatment of methane and odor can be reduced, and methane and odor-producing compounds in landfills or the like can be effectively decomposed.

The invention relates to the technical field of sewage treatment, and discloses a ventilation type deep denitrification biological filter device and a treatment method thereof. The device comprises a cavity, and a surface substrate layer, a nitrification filler layer, a plant slow-release carbon source layer and a denitrification filler layer are sequentially arranged in the cavity from top to bottom, wherein an opening is formed in the side wall, located at the plant slow-release carbon source layer, of the cavity; a water inlet pipe is laid in a sand soil layer; a ventilation pipe is laid at the lower part of the nitrification filler layer; and a water outlet pipe is laid at the lower part of the denitrification filler layer, and a water outlet of the water outlet pipe is higher than the top of the plant slow-release carbon source layer. The device is compact in structure, so that the biofilter has a simple operation and maintenance process, stable effluent quality and certain impact resistance while performing efficient and low-consumption denitrification.