The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
This study reported the feasibility of flushing remediation of Cu contaminated soil using thiacalix arenetetrasulfonate (TCAS) reagent. Batch experiments were performed to test the factors influencing remediation of Cu contaminated soil. The effects of pH value, initial conentration and contact time.on the removal capacities of Cu by TCAS reagent had been studied. The results showed that the TCAS...
Based on the acid rain data measured at Shapingba weather station in Chongqing from 1993 to 2007 and the emission data of SO2 in Chongqing, Guizhou and Sichuan, the acid rain change trend and its relationship with SO2 emission were analyzed. The results indicated that in the past 15 years, the change trend of the pH value of the precipitation in Chongqing changed between 3.8 and 4.5. The annual variation...
Endocrine Disruptors, which is trace but more and more noted in aquatic environment, has a significant effect on people's hormone systems. The estradiol (E2) was a research object, and the effects of solution parameters (concentration, pH, ionic strength and natural organic matter (NOM) ) on the retention of trace E2 by nanofiltration membrane (NF) (BDXN-90 polyamind aromatic compound membrane) filtration...
Sludge-glass ceramic particles were used as filter media for single biological aerated filter (BAF) to treat dairy wastewater in this study. Seed sludge was inoculated from Zhengzhou Wulongkou wastewater treatment plant. When bio-film was promoted and the effluent contamination removal rates above 40% after one week's operation, started to optimize the operation parameters such as pH, hydraulic retention...
A novel bioflocculant-producing bacterial strain B-28 was screened from contaminative soils by gas oil wastewater. The optimum carbon sources, nitrogen sources, metal ions and initial pH were glucose, yeast extract, 2 ml 0.1% FeCl3 and 6-8, respectively. And at the optimal couture conditions, flocculating activity reached its maximum flocculating activity of 97.2% at 72 h. This indicated that the...
The research reveals the level and chemical forms of lead in soil of sewage irrigation area in Guangdong province, South China. Samples were collected from topsoil (0-10cm) and subsoil (30-40cm), and the total content and different fractions of lead were extracted by HNO3-HF-HClO4 and Tessier sequential extraction procedure, respectively. It is concluded that the soil of study area has been contaminated...
Ammonia addition and pH depression can inhibit the formation of bromate in ozonated drinking water by reacting with free bromine (HOBr/OBr-), an intermediate in bromate formation, to form bromamines and other bromoorganic disinfection byproducts. This study was performed to assess the effects of ammonia and pH value combinations on the formation of bromate and THMs during ozonation and chlorination...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.