Aiming at the treatment of difficult-to-handle oily wastewater, the ceramics filter mediums made from the iron and steel plant sludge were adopted to surface lipophilic modification so as to remove oil efficiently. Th...Aiming at the treatment of difficult-to-handle oily wastewater, the ceramics filter mediums made from the iron and steel plant sludge were adopted to surface lipophilic modification so as to remove oil efficiently. The hydrolysis technique by FTIR and conductivity test indicated that under acid conditions hydrogen silicon oil did not hydrolyze but release hydrogen by chemical reaction under alkaline conditions. The results of the experiments including contact angle measurement, FTIR analysis, and SEM analysis illustrate that a layer of lipophile coating indeed exists evenly on the surface of filter mediums after modification. Furthermore, the hydrogen-containing silicone oil was combined through dehydration of Si-H bond with the-OH on the surface of ceramic filter medium.展开更多
A new kind of environmental ceramics medium which was made of industrial solid wastes discharged hy Shandong Alum Corporation has been used in the process of drinking water treatment. New techniques were introduced to...A new kind of environmental ceramics medium which was made of industrial solid wastes discharged hy Shandong Alum Corporation has been used in the process of drinking water treatment. New techniques were introduced to ensure its remarkable advantages such us high porosity and strength. The results of proctical application shotc that this sort of filter medium has shorter,filtration run, shorter mature period and higher filter deposit cupability compared with traditional sand filter medium. Moreaver, up to 25%-30% of the daily running costs are expected to be reduced by using this ceramics medium.展开更多
基金Funded by the National Natural Science Foundation of China(No.20876122)Self-determined and Innovative Research Funds of WUT
文摘Aiming at the treatment of difficult-to-handle oily wastewater, the ceramics filter mediums made from the iron and steel plant sludge were adopted to surface lipophilic modification so as to remove oil efficiently. The hydrolysis technique by FTIR and conductivity test indicated that under acid conditions hydrogen silicon oil did not hydrolyze but release hydrogen by chemical reaction under alkaline conditions. The results of the experiments including contact angle measurement, FTIR analysis, and SEM analysis illustrate that a layer of lipophile coating indeed exists evenly on the surface of filter mediums after modification. Furthermore, the hydrogen-containing silicone oil was combined through dehydration of Si-H bond with the-OH on the surface of ceramic filter medium.
文摘A new kind of environmental ceramics medium which was made of industrial solid wastes discharged hy Shandong Alum Corporation has been used in the process of drinking water treatment. New techniques were introduced to ensure its remarkable advantages such us high porosity and strength. The results of proctical application shotc that this sort of filter medium has shorter,filtration run, shorter mature period and higher filter deposit cupability compared with traditional sand filter medium. Moreaver, up to 25%-30% of the daily running costs are expected to be reduced by using this ceramics medium.
