Month: September 2017

calculation of COD

Normality of FAS: N(FAS) = W/ (TV×0.04904×10) = 10/ (18.7×0.04904×10) = 1.0904 Observation – Burette Reading Greywater A  Greywater B Greywater C Bathroom Kitchen Azolla bed          1.        4.9        1.6       1.3...

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Procedure for calculating COD

COD(chemical oxygen demand)- Chemical oxygen demand is a measure of the oxygen required to oxidize all compounds, both organic and inorganic in water. Reagents preparation for chemical oxygen demand: Standard potassium...

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Drawing and marking

week 2 OBJECTIVES- To draw the engineering drawing for water tank, toilets and septic tank. To estimate the cost of materials. To mark the plot. Then, we decided to construct water tank having capacity of 5000 liters which will...

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Measuring Area

Week 1: OBJECTIVES- To measure the area of construction and draw the plan on sheet. To measure heights by using dumpy level. Before starting actual work, we take the measurements of 1st hostel, 2nd hostel and toilets for...

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Troubleshooting of Bio Drum…

Problem:- Bio-drum Rotating mechanism not working properly. when you start drum to rotate, chain slips from driving sprocket. On this problem I worked twice. For the first time, root causes that I found :- Why chain slips from...

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