Gravel Bed Filter Articles & Analysis
5 articles found
Acchieving Process Optimisation and Cost Reduction The cooling water system at a steel rolling mill is heavily contaminated with tramp oil due to various oil leaks. Small amounts of oil and very viscous grease come from the lubrication of the roll bearings. ...
The water, before flowing back into the cooling water system, passes through a sand / gravel water clarification filter bed. All the oil, grease and the sticky mass has to be reliably removed otherwise the sand and gravel of the clarification filter will become contaminated with these products which, in time, ...
Acchieving Process Optimisation and Cost Reduction with the use of an Oil ...
Also, some direct-fired dryers were equipped with gravel bed filters. None, however, were successful in eliminatingXhe dryer smoke; only reducing it. ...
Nitrogen removal in micro-polluted surface water by the combined process of a bio-filter and an ecological gravel bed was studied. Sodium acetate was added into micro-polluted surface water as carbon source and the nitrogen removal under different C/N ratio, hydraulic load and temperature were investigated. The results showed that the ...