METHOD AND DEVICE FOR REMOVING THE NITROGEN FROM THE WASTEWATER BY MEANS OF A DIPPED BODY
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Organic carbon and nitrogen removal from waste water - by biological degradation, nitration and denitrifying in plant contg. immersed percolating filters
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DEVICE FOR MECHANICAL WASTE WATER CLEANING
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Sewage treatment system - with alternately rising and falling algal concentration in pond
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DEVICE FOR BIOLOGICAL WASTE WATER TREATMENT
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METHOD AND DEVICE FOR THE REMOVAL OF NITROGEN FROM WATER
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Final sewage clarification basin - divided by filter cloth cleaned by sludge bailer brush arm and automatic reverse flushing
