soil equivalent foams Articles

  • Effect of soil fortified by polyurethane foam on septic tank effluent treatment

    Fortified soil was made up of a mixture at a mass ratio 4/1000–6/1000 of sponge and natural soil according to the results of column experiment. The fortified soil had bigger porosity and higher hydraulic conductivity than the natural soil. The columns packed with 900 mm of the fortified soil endured a flow rate equivalent to 100 L/m2/d of septic tank effluent and the average chemical oxygen ...

    By IWA Publishing

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