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References in periodicals archive ?
The slow sand filter plants also had design faults and were found non-functional during the visits.
She reported that within one week, her slow sand filter bioreactors had reduced the naphthenic acid concentration in tailings water samples from 100 mg/liter to 7.67 mg/liter--a 92%plus reduction.
Jurkovic, Toxicant and Parasite Challenge of Manz Intermittent Slow Sand Filter, Environ.
One of the simplest and most gratifying things that I accomplished was to assist with the installation of individual slow sand filter water treatment systems at the Koulo Government Primary School.
As the water flows through the slow sand filter beds, it is collected by a slotted PVC underdrain system supported on a gravel bed.
Filtration of particles in a slow sand filter is accomplished primarily by the top few centimeters of sand and a "schmutzdecke" (literally, "dirty skin"), a gelatinous mat of bacteria, fungi, and algae that forms on top of the sand.
RCC slow sand filter for 72.00 sqm and clear water tank of 86000 Itr capacity) Document cost : INR 400 EMD value : INR 24690 Document Purchase Start date : 07 Dec 2018 Document Purchase End date : 27 Dec 2018 Opening date : 27 Dec 2018 Period of contract : 6 month
Tenders are invited for Balance work i.e RCC slow sand filter for 72.00 sqm and clear water tank of 86000 ltr capacity) in connection with Providing WSS to PC Habitations under WSS Jadrangal in Tehsil Dharamshala Distt Kangra (H.P) Document cost : INR 400 EMD value : INR 24690 Document Purchase Start date : 21 Nov 2018 Document Purchase End date : 11 Dec 2018 Opening date : 11 Dec 2018
Thames Water are looking for a number of partners to help us achieve our aim of increasing the efficiency of slow sand filter beds and rapid gravity filters through effective repairs and refurbishments and good quality media.
Tenders are invited for Investingation, design and cnstruction of 2.00 lacs liters sump well, construction of construction of boundary wall, renovation of repid gravity and slow sand filter, construction of residental i type quarter.
Tenders are invited for Excavation , laying , jointing and testing of GMS tube in main gravities and distribution networks, C/o 1 Intake chamber, 7 Stand Post , 1 Chlorination chamber , RCC storage tank of 1,17,300 Ltrs capacity, Sedimentation Tanks 22, 000 Ltrs capacity, 2 unit of slow sand filter beds of (38.88 Sqm each), barbed wire fencing etc.