In the range of pH 1~14,the flux and retention of membranes had no obvious changes,which showed PVDF/TPU blend hollow fiber membranes had good resistance to acid and alkali.
and the turbidity of effluent water of membrane can be stabilized below 5NTU, which is smaller than the standard of 5NTU stipulated by the construction ministry, these data explain that it is viable to treat the simulated domestic wastewater with the PVC-CEVA blend membrane.
Furthermore, the gained matter is blended with viscose and polyvinyl alcohol(PVA) after analysing the gained matter by modern instrument, then the properties of blend solutions, interaction and compatibility between the gained matter, viscose or PVA were studied and compared.
The biodegradation experiment demonstrated that the as - made blend exhibited good biodegradability and revealed a three - stage biodegradation, corresponding to the propagation of microorganisms, the degradation of starch and the degradation of PPC.
At different magnetic induction (including 0 mT, 2.4 mT, 6 mT, 10 mT and 17.4 mT), the strain's size, various of density, numbers of blend bacteria and the effect of Cr~(6+)-removal by two strains of anaerobic bacteria were studied with home-made experimental device.
1. Thermo-gravimetric behavior of waste plastics (WP), blend coal (BC) and their mixtures in different mixing ratios and different mixing ways were respectively studied during pyrolysis by using a thermal balance.
Perovskite oxides ( ABO_3 ) has stable structure and high photocatalytic activity ,further more a catalyst which has more narrow band gap can be synthesized and can absorb more solar energy by altering the type of A and B. A series of perovskite oxides are synthesized by means of blend deposition using the nitrate of A and B as the raw materials, and ammonia or sodium carbonate as sedimentation .
Influence of absorbents ingredients and liquid velocity on CO_2 removal rate in the flow chat of flue gas flowing out of the hollow fiber membrane ( I) are investigated on the simple device for the CO_2 removal taking pure and blend absorbents as absorbents. The experiments indicate that the flow chat of flue gas flowing in the membrane lumen (II) is better than I from the point of view of mass transfer.
A polyamic acid (PAA)/polyurethane (PU) blend with PU as the disperse phase was first prepared via in situ polymerization of pyromellitic dianhydride and 4,4-oxydianiline in PU solutions.
They came from Arctic-Tertiary, Paleo-tropical-Tertiary and Tethys-Tertiary florisitic elements, and the blend of the three elements with many genera of autochthonous origin.
The surface composition of the blend films was determined by Fourier transform infra-red spectroscopy coupled with a variable incidence angle attenuated total reflection accessory (ATR-FTIR).