Based on the reviewing of the condensing heat recovery research and application, the disadvantages of household air-conditioner and hot water heater are pointed out, and a new energy-saving system by combining them is...
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The chemical surfactant Tween 80 and biosurfactant rhamnolipid were added to the solid-state fermentation processes of a strain of actinomycete Streptomyces badius. The extracellular amylase, protease, carboxymethyl c...
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Poly diallyl dimethyl ammonium chloride (PDMDAAC) is a cationic organic polymer flocculant, The aim of this work is to use PFS or PAC for treating surface raw water and PDMDAAC as coagulant aid. Electron microscope wa...
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The adsorption of Cu2+ from pharmaceutical wastewater by zeolite was studied in a batch adsorption system. Factors influencing copper adsorption such as pH (1-5), adsorbent dosage (5-50 g/L) and contact time (20-600 m...
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The airflow of air curtain installed on the shearer carrys a part of dust produced by the shearer to the driver side under the entraining action. So, for further improvement on the dust-isolation effect, the authors p...
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The cavity diameter is an important parameter to denote the characteristic of porous concrete. So far, the information about the measurement of cavity diameter of porous concrete is quite insufficient. Especially, the...
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The authors theoretically studied the entropy generation during heat transfer of a pin fin array in channels with lateral ejection holes for a turbine blade. The entropy generation model was established based on the s...
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This paper is devoted to study wind environment in a dense urban areas from the ventilation perspective. In order to take the stochastic characteristics of city wind into consideration, the exceedance probability anal...
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The research studied enhanced treatment of sewage from discharging points of rivers by biofilm process dosing with enzyme and the effect of phenol on removal rates of the main pollution indexes, and investigated promo...
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Use optimized indigenous microbial flora biotechnology to conduct repair experimental research on oil-contaminated groundwater in loess area of north Shaanxi. The selected optimized flora include Pseudomonas, Micrococ...
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