Trickling filter

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

Solar rural domestic sewage trickling filtration system and use method thereof

Abstract: The invention discloses a solar rural domestic sewage trickling filtration system and a use method thereof. The system comprises a grid adjusting tank, a trickling filter and a constructed wetland, and collected rural domestic sewage is purified step by step. Compared with the prior art, the system has the advantages that a storage battery supplies energy by the aid of a solar panel, energy sources are saved, running cost is reduced, the structure is simple, pumice stone fillers are arranged in the trickling filter, COD (chemical oxygen demand), ammonia nitrogen and total nitrogen and total phosphorus removal rate is high, water treatment effects are good, oxygen is supplied for the trickling filter by natural ventilation, an aerator is omitted, investment cost is reduced, enhanced phosphorus removal can be realized by modified limestone ceramsites in a constructed wetland treatment area, nitrogen and phosphorus adsorption effects are remarkable, and the whole project is simple in structure, convenient in construction, stable in running and low in running cost.

Evaluation of power economy characteristics of aerobic wastewater treatment processes

Abstract: The relationship between the power economy and the BOD removal rate per unit floor area or unit volume of the aerobic wastewater treatment processes, such as activated sludge, trickling filter, rotating biological contactor, fluidized bed, oxidation ditch, deep shaft aerator were investigated under their conventional operating conditions for the domestic wastewater treatment. It was clarified that the higher BOD removal rate per unit volume or unit floor area of the plants brings about the lower power economy. Appropriate selections of wastewater treatment processes and their operating conditions are significant to maintain the high quality effluent and the high power economy.

Biological treatment scouring wastewater

Abstract: Biological wastewater treatment systems, such as the activated sludge processes or trickling filters, have been widely used for treating wastewater from textile man ufacturing plants to meet stringent effluent limitations.1 However, unlike other textile wastewaters, wool scour ing wastewater contains significant quantities of sus pended solids (SS), organic matter, and grease, that often cause malfunction of a biological treatment system.

Trickling Filter-Activated Sludge Combinations

Abstract: Activated sludge processes were used on a pilot-plant scale as a means of upgrading trickling filter plants treating domestic wastewater. Parallel use of units provided increased hydraulic capacity and produced effluent BOD concentrations consistently below 25 mg/l. Series activated sludge-trickling filter or trickling filter-activated sludge processes produced effluent BOD consistently below l5 mg/l. This performance was maintained in all cases when operating at organic loadings up to about 50 lb BOD/day/1,000 cu ft (0.80 kg/day/m³) of treatment unit volume.