Pei-shi Qi

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A new kind of polymer inorganic coagulant-PFSiS (Poly Ferric Silicate Sulphate) coagulants, at different Fe/Si molar ratios and B values (B=OH/Fe) were prepared. Then, the turbidity removal efficiency of PFSiS in treating kaolin suspension was investigated. The results showed that turbidity was removed highly by using PFSiS under the certain conditions.(More)
The purpose of this study is mainly to have qualitative-quantitative analysis on the adulteration in rice bran oil by near-infrared spectroscopy analytical technology combined with chemo metrics methods. The author configured 189 adulterated oil samples according to the different mass ratios by selecting rice bran oil as base oil and choosing soybean oil,(More)
Phase hybrid bio-reactor (HBR) was used in treating coke-plant wastewater by adding submerging fiber-ball fillers in suspended growth activated sludge. The optimum operation parameters for the highest performance were determined. It is found that the hybrid biological reactor works well for the coke plant wastewater treatment in terms of COD, NH4-N and(More)
The effect of micro-aerobic hydrolysis and acidification to high strength antibiotic wastewater treatment is studied. The results demonstrate that micro oxygen enhanced the physiological metabolizability of facultative hydrolytic and acidogenic bacteria, and aerating stirring improved the hydraulic condition. Degree of acidification (AD) and volatile fatty(More)
The rapid prediction of the low-carbon fatty acids (C < or = 14) content in grease samples was achieved by a mathematical model established by near infrared spectroscopy combined with support vector machine regression (SVR). In the present project, near-infrared spectrometer SupNIR-5700 was used to collect near-infrared spectra of 58 samples; partial least(More)
Laboratory flume test was conducted to simulate the moving process of the oil slick for investigating the transferring law of an oil spill in the low-temperature and ice-covered river. The experimental results indicated that the transportation of the oil slick was driven by the current and the oil spreading, and the transferring speed decreased by three(More)
In order to improve the ammonium-nitrogen (NH4+ -N) biodegradation rate, a suspended carrier was exploited and biofilm was cultivated in three different phases in a sequencing batch reactor (SBR). A flimsy honeycomb-shape biofilm was formed between the endocentric columns on the suspended carrier,which increased the cling amount of nitrobacteria and(More)
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