Researches And Application Of Removal Of SiO₂from Highly Viscous Crude Oil Wastewater

To reduce silicon content in heavy oil wastewater at home and abroad has been one ofthe focuses of research.Because of super heavy oil sewage water complex, affected by variousmachine miscellaneous effects, in addition to silicon is difficult, in the existing medicamentfoundation continues to reduce water purification agent cost is very difficult. With thedeepening of super heavy oil exploitation, super heavy oil output liquid properties graduallychange, sewage treatment continues to expand the scale, from the wastewater treatmentstation of the long-term development, must be combined with the existing sewage treatmenttechnology, comprehensive, in-depth study of sewage quality, through indoor experiment andfield test, screening out stronger applicability, lower cost model medicament filtration system,perfect technology, realize the wastewater treatment station of low cost, high efficiency.In conclusion, in industrial water treatment system, the requirement for many, siliconcompound treatment may not be alone, should be considered in various water suspendedsubstance, colloid and dissolved gases, ion treatment effect, in order to ensure the effluent ofthe system indicators in line with the requirements of industrial production. In general, thecoagulation treatment of depth is relatively low, it is difficult to discharge silicon compoundsto reduce the content of1mg/L below. If water system in high water quality requirements,then in the coagulation work arrangement of reverse osmosis, electro-coagulation or ionexchange operation to improve the quality of effluent. Specific water treatment processaccording to the water quality and the different technical economy index to select.To live to put forward actually to oily wastewater reuse boiler in silicon oil compositetechnology, strengthen the process flow, reduces the operation cost. Silicon removing processby adding medicament to achieve removal of silicon, and a combination of oil removal,reduce the suspended matter and organic matter content of. Regulator ’s role is to improvewater quality, increase the soluble silica, oil, suspended matter and organic matter content ofthe removal rate, according to the actual situation may determine whether the need for adding.Oil removal process by adding medicament to realize oil removal, and a combination of silicaremoval, reduce the suspended matter and organic matter content in the role of. Regulator ’srole is to improve water quality, increase the soluble silica, oil, suspended matter, hardnessand the content of organic matter removal rate. After the actual operation process operation than the prior index decreased32%; desilication agent total operating costs2.05yuan/ton,compared with the existing index decreased34%; pharmacy total operating costs3.78yuan/ton,34%lower than existing index.