A monitoring campaign in a horizontal subsurface flow constructed wetland under the influence of transient loads of flow-rate, organic matter, nitrogen and suspended solids showed an irregular removal of COD and TSS and lower both removal efficiencies and mass removal rates than the ones observed in other studies for similar operating conditions. This circumstance is associated to the presence ...

this research was done in order to determine the basic criteria for “tehran oil refinery effluemt treatmentunit” to prove the feasibility of the application of powdered activated carbon in aeration zone of activated sludge system. the main stages of this research included: determination of qualitative and quantitative characteristics of raw wastewater preparation of two pilot scale units of act...

The removal of conifers through commercial timber harvesting has been successful in restoring aspen, however many aspen stands are located near streams, and there are concerns about potential aquatic ecosystem impairment. We examined the effects of management-scale conifer removal from aspen stands located adjacent to streams on water quality, solar radiation, canopy cover, temperature, aquatic...

in this survey, with the main objective of studying final effluent treat ability of pars paper industries, the quantitative and qualitative characteristics of the effluent were firstly determined, which showed a min. and max. rate of 1350 and 1800 m3/hr, with 1400 mg/l and 839.5 mg/l respectively for cod and tss, as the main contaminants. also cod and tss population equivalents were calculated ...

Teknologi yang berbeda pada IPAL komunal memberikan pengaruh pula terhadap kadar parameter BOD, COD dan TSS di tampungan inlet outlet. Penurunan efektivitas dihitung dengan menggunakan rumus efisiensi removal. Hasil analisis untuk BOD Gambiran adalah sebesar 24,01%, sedangkan Mendiro 70,72% outlet awal 95,85% akhir. Efektivitas penurunan 45%, mengalami 78,33% 85,83% Nilai 40%. Pada saat sama, c...

Abstract The apple industry uses high flows of potable quality water to transport and clean the apple, which is regularly contaminated. Thus, it necessary implement an efficient treatment system during industrial process, providing reductions in intake release flows. A hybrid was developed by applying electrolytic electrocoagulation using a batch process (Step 1) continuous 2), followed microfi...

The evaluation of a membrane bioreactor (MBR) for pretreatment of reverse osmosis (RO) in order to reuse and reclamation of industrial town wastewater treatment plant was investigated in this study. Performance of MBR effluent through water quality in term of parameters such as chemical oxygen demand (COD), total suspended solids (TSS), total nitrogen (TN) and total coliform (TC) were measured....

Palm oil mill effluent (POME) is a wastewater generated from palm industries that rich with organic and nutrients which can becomes an excellent substrate for biogas production. A comprehensive study was carried out to the effect of different ratio inoculum POME In addition, removal efficiencies biochemical oxygen demand (BOD), chemical (COD), ammoniacal nitrogen (AN), total (TN) suspended soli...