Trickling filter

About: Trickling filter is a research topic. Over the lifetime, 1098 publications have been published within this topic receiving 20219 citations.

Device of waste gas is handled to biological method of multistage

Abstract: The utility model discloses a device of waste gas is handled to biological method of multistage, including scrubbing tower, a bio -trickling filter, the 2nd bio -trickling filter, biofiltration tower and the exhaust apparatus who loops through the pipe connection. The beneficial effect of the utility model: each section technology is made pointed references and is administered to different gas composition and concentration characteristics, through biodegradable effect or combined action alone, makes process gas's effect show, and with low costs, makes follow -up technology intractability reduce after each section processing, can not produce secondary pollution.

Apparatus an d method for degrading VOC by utilizing pseudomonas aeruginosa

Abstract: The present invention provides an apparatus and a method for degrading VOC by utilizing pseudomonas aeruginosa. The apparatus comprises a trickling filter and an absorption tower, and further comprises a strain culture tank, wherein the absorption tower comprises a trickling filtering unit and a filtering unit; top portions of the two units are connected by an air pipeline; bottom portions of the trickling filtering unit and the filtering unit are connected with the trickling filter by a communication pipe; the trickling filtering unit is provided with, from bottom to top, a buffer and air distribution channel, a first grid plate and a first packing layer, and a nozzle A; the nozzle A is connected with the trickling filtering unit by a circulating water pipeline; the filtering unit is provided with, from bottom to top, a buffer and air outlet channel, a second grid plate and a second packing layer, and a nozzle B; and the nozzle B is connected with a sludge outlet that is formed in the bottom portion of the culture tank by a sludge pipeline; and a bacteria solution outlet of the culture tank is connected with the trickling filtering unit by a solution infusion pipeline. According to the apparatus and the method, the investment cost is low, secondary pollution is avoided, the operating effect is good, and a VOC removal rate is high; and the apparatus and the method aim to solve the problem in the prior art that the VOC is degraded without utilizing the pseudomonas aeruginosa.

Settlement water supply system with physical-chemical treatment works

Abstract: FIELD: process engineering ^ SUBSTANCE: invention relates treatment and decontamination of whatever effluents and may be used in treatment plants of minor settlements, cottages and camps, educational and medical centers, etc Proposed system comprises settler with thin-layer modules, high-rate trickling filter with granular packing, plasma chemical reactor with HV pulse generator with pulse repetition frequency of 01-02 Hz, wells communicated with pipelines, manifolds and sewage pump station, grids, sand trap, catalytic electrochemical reactor, biological pond with compressor and botanical site with higher aquatic vegetation, clean water pump station, manifolds to feed cleaned water into filtration trenches Catalytic electrochemical reactor is composed of standard high-rate trickling filter with distribution and collection system Filter packing represents alternating and screen-isolated electrically negative granulated material, for example, manganese-alumina catalyst AOK-7541 and electrically positive carbon-bearing granulated material, for example, active carbon AC-3 ^ EFFECT: closed-circuit nonpolluting water supply system, reduced power consumption ^ 2 cl, 2 dwg, 2 tbl, 2 ex

Biological trickling filter type water purifying device

Abstract: PURPOSE:To improve the instability of an activated sludge type treatment system and to enable treatment within short time by constituting this device with the combination of an agitation tank providing a diffusing pipe and an injecting device of biological decomposing agent and the reaction tank providing an nonwoven fabric and the diffusing pipe respectively. CONSTITUTION:In the reaction tank 3, treating water executes the biological decomposition treatment at the surface of plural filtering layers 8 by an aerobic microorganism, and at the central part of the filtering material anaerobic microorganism are living like a sandwich and anaerobic decomposition treatment proceeds and an emulsified oil component is selectively decomposed by an enzyme. The bio-membrane stuck to the surface of the filtering material is cleaned and floated by the pealing off phenomenon of the activated sludge and a floating bio-membrane is made flow into a sedimentation basin. Into the downstream of the reaction tank 3, the sedimentation basin 4 is justaposed, and the reaction product formed by biological decomposition in the reactor 3 and the floating bio-membrane from the filter surface formed by pealing off phenomenon of the activated sludge of the surface of filtering member are together made flow into the sedimentation basin 4. The sludge settled in the sedimentation basin is returned into the stirring tank 2 by the pump 11 and the floating product is sent back into the precipitating and separation tank 1.