摘要 |
<p>Abstract of the Disclosure The water to be treated might be river water which needs to be clarified, or might be septic tank effluent which needs to have its BOD and dissolved organics content diminished, and its ammon ium o xidised. Treatment is do ne by passing the water throug h a bloc; of so ft open-cell foam. The block of foam is rectanguloid in its basic form. The block of foam is housed in a watertight box. The rectanguloid form enables minimal hydraulic heads, and is simple and cheap to manufacture and install. Antho ny Asquith Docket: 268-71 7( 70 ( D 0 ,</p> |