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251.
Ray C. Whittemore Larry E. LaFleur William J. Gillespie Gary A. Amendola Jennie Helms 《Chemosphere》1990,20(10-12)
This paper summarizes the distribution of concentrations of 2378 substituted dibenzo-p-dioxins and dibenzofurans in bleached kraft and sulfite mill pulps, wastewater sludges, and treated effluents in the U.S. in mid-1988. 相似文献
252.
Pradeep Kumar Ekta Faujdar Raj K. Singh Subham Paul Aruna Kukrety Vijay K. Chhibber Siddharth S. Ray 《Environmental Chemistry Letters》2018,16(3):1025-1031
CO2 absorption by liquid-containing amines to form carbamate and bicarbonates is an effective method of CO2 mitigation from industrial exhausts, but this process is expensive and requires large quantities of amines. Here we modified chitosan, a naturally occurring biopolymer containing NH2 functions, to use it for CO2 absorption in aqueous media. Chitosan was dispersed in 40% aqueous NaOH solution then treated with monochloroacetic acid dissolved in isopropanol, to yield O-carboxymethylchitosan. Results show that the CO2 absorption capacity of O-carboxymethylchitosan is 0.508 g/g, which is higher than the capacity of conventional amines such as 1-aminoamine, 2-methylpropanolamine and methyldiethanol amine, but lower than the capacity of monoethanolamine. A cyclic study showed that O-carboxymethylchitosan is a stable component for CO2 absorption and regeneration. 相似文献
253.
254.
Saikat Sinha Ray Shiao-Shing Chen Dhanaraj Sangeetha Hau-Ming Chang Cao Ngoc Dan Thanh Quang Huy Le Hong-Ming Ku 《Environmental Chemistry Letters》2018,16(4):1247-1265
Membrane technology has become a common separation technology over the past decennia. Membranes are used more and more for the production of drinkable water from groundwater, surface water and wastewater. Membranes are now competitive versus conventional techniques. Desalination is predominantly used to eradicate the problem of water scarcity. The sustainability of all desalination processes depends mainly on the reduction of energy costs (production cost) and the increase in water recovery. Forward osmosis and membrane distillation are emerging technologies for sustainable desalination. Here we review membrane processes of forward osmosis and membrane distillation and the advancements in membrane material and modules. We also discuss the capability of membrane distillation in treating highly concentrated aqueous solutions derived from other desalination processes. Furthermore, the advancements in fabrication of high-performance membrane is reviewed and the performance of different membranes and optimization of membrane distillation process are summarized. 相似文献
255.
Imam Arfin Suman Sunil Kumar Vempatapu Bhanu Prasad Tripathi Deependra Ray Anjan Kanaujia Pankaj K. 《Environmental science and pollution research international》2022,29(29):44135-44147
Environmental Science and Pollution Research - The rapid pace of economic development has resulted in the release of several polycyclic aromatic hydrocarbons (PAHs) into the environment. Microbial... 相似文献
256.
Gogoi Mandakini Mukherjee Indranil Ray Chaudhuri Shaon 《Environmental science and pollution research international》2022,29(41):61838-61855
Environmental Science and Pollution Research - Presence of higher concentration of ammonia (> 0.5 mg/L) as well as nitrite (> 0.2 mg/L) in aquaculture environment create difficulties... 相似文献
257.
Mohanty Trupti Rani Tiwari Nitish Kumar Kumari Suman Ray Archisman Manna Ranjan Kumar Bayen Supriti Roy Shreya Das Gupta Subhadeep Ramteke Mitesh Hiradas Swain Himanshu Sekhar Bhor Manisha Das Basanta Kumar 《Environmental science and pollution research international》2022,29(25):37498-37512
Environmental Science and Pollution Research - Aulacoseira granulata (Ehrenberg) Simonsen 1979 are considered as the eco-variable species which varies in density and diversity along with their... 相似文献