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Li J.,Key Laboratory of Pollution Processes and Environmental Criteria of the Ministry of Education | Li J.,Key Laboratory of Environmental Remediation and Pollution Control in Tianjin | Li J.,Nankai University | Tang Y.,Nankai University | And 5 more authors.
Chinese Journal of Environmental Engineering | Year: 2015

In 2010, the research on adsorbing diesel by biomass materials was carried out in our lab. Consistent with previous studies, both floating and adsorption performance of thermally modified biomass were improved, while the cost increased a lot. Inspired by previous studies on oil-absorbing composite materials, both the floating and sorption performance of mechanically mixed composite of cattail and reed were experimentally investigated in 2012, and the factors affecting removal rates were optimized by orthogonal experimental method. The result showed that adsorption capacity of cattail-reed composite was larger than reed, and even larger than the superposition value of cattail and reed. The buoyancy of reed sharply decreased under oscillation conditions, while cattail and the composite were lesser. The optimum conditions for removal rate of cattail were as follows: adsorbent dosage of 0.7 g, oil film thickness of 0.55 mm, oscillation frequency of 0 r/min. Under the same conditions, the particle size of reed that could remove most of the oil was 380~500 μm and the best removal rate of the composite was found when the mass ratio of cattail and reed with the same particle size was 1:4. ©, 2015, Science Press. All right reserved.

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