Water Analysis : To Estimation Of Total Suspended Solids(TSS)

PRINCIPLE:
A well mixed sample is filtered through a weighed standard glass fiber filter and the residues retained on the filter are dried to a constant at 103° C to 105° C. The increase in the weight of the filter represents the total suspended solids. If the suspended material clogs the filter and prolonged filtration, the differences between the total solids and total dissolved solids may provided an estimate of the total suspended solids.
REQUIREMENTS:
·         Glass fiber filters
·         Filtration device
·         Weighing balance
PROCEDURE:
·         Oven dry the glass fiber filter and weigh it.
·         Assemble filtering apparatus and glass fiber filter.
·         Wet filter with a small volume of distilled water to seat it in filtration apparatus.
·         Shake the given water sample and add 100 ml of it on filter.
·         Start the suction device to generate vacuum and filter out the water sample
·         Carefully remove the filter from filtration apparatus and dry it in oven at 103OC to 105OC for at least 1 hour. It would be having dried solids.
·         Weight the filter after drying.
·         Put the data of pre weight and post weight of the dish in the following equation and calculate the amount of total solids present in the sample
CALCULATION:
mg total suspended solids/L =         (A-B) x 1000      .
     Sample volume, ml
Where, A = post weight of dish (weight of dried residues + dish)
B= pre weight (weight of dish)

Comments

Post a Comment

Popular posts from this blog

Process of Wastewater Treatment Plant

Image
PROCESS OF WASTEWATER TREATMENT PLANT : Wastewater enters the treatment plant First it goes through a fine screen, next to aerated grit chamber, and then enters the primary clarifier. Sludge settled in the primary clarifier is sent to the fermenters and then to digesters. After the primary treatment, wastewater flows into (BNR) bioreactors. The activated sludge is separated in the following secondary clarifier. The clear effluent flows into Ultraviolet (UV), then to River. Settled activated sludge in the secondary clarifier is pumped back to BNR. Excess sludge is pumped into the dissolved air floatation (DAF) unit for thickening. Wastewater is collected in sanitary sewers (a complex network of underground pipes). Upon reaching the treatment plant, the wastewater flows through a series of treatment processes which remove the wastes from the
Read more

Water Analysis : Estimation Of Nitrate Nitrogen In Given Water Sample

INTRODUCTION: Nitrate is found only in small amounts in fresh domestic wastewater but in the effluent of nitrifying biological treatment plants nitrate may be found in concentration up to 30mg nitrate as nitrogen/L. It is essential nutrient for many photosynthetic autotrophs and in some cases has been identified as the growth-limiting nutrient. Generally 10mg nitrate nitrogen/L of drinking water is recommended to prevent disorder called methemoglobinemia in infants. Determination of nitrate nitrogen is difficult because of the relatively complex procedure. Although UV technique that measures the absorbance of nitrate at 220nm is suitable for measuring nitrate in wastewater. PRINCIPLE: This technique is useful for the screening of sample that has low organic content that is uncontaminated natural water and potable water supplies. The nitrate calibration curve follows Beer's Law up to 11 mgN/L. Measurement of UV absorbance at 220nm enables rapid determination of nitrate
Read more