FIELD: chemistry.;SUBSTANCE: invention can be used in industry when treating waste or natural water from arsenic. The method involves use of a composite sorbent which contains as the sorbing component iron hydroxide particles which are immobilised on organic fibres, bringing the sorbent into contact...
Selenium in water and groundwater requires treatment because in high concentrations, it can cause selenium toxicity. To render arsenic- and selenium-containing waters safe for humans and the environment, the U.S. Environmental Protection Agency (EPA) specifies treatment to levels of arsenic that are...
The present invention is directed to an adsorbent for removing arsenic species from ground water and/or surface water systems. Such adsorbent removes both As(III) and As(V), thereby providing potable water. Also provided is a method and/or device (e.g., filter) for removing arsenic species...
manganesesandPterisvittataJuncuseffusesConstructed wetlands are an attractive choice for removing arsenic (As) within water resources used for drinking water production. The role of substrate and vegetation in As removal processes is still poorly understood. In this study, gravel, zeolite (microporous ...
第36卷第15期2 01 0年5月山SH AN XI ARCHll]姗瓜E西建筑Vd.36N o.15M ay.2010· 171·文章编号:1009-6825( 2010) 15Ⅲ171一02砷及含砷废水的治理方案介绍邢月清摘要:论述了砷及含砷废水的排放和造成的污染问题,并结合某工厂含砷废水的处理过程,从方案设计到运行效果作了详细介绍,指出该处理方案对其...
Radium is just one of hundreds of contaminants found in drinking water systems nationwide like arsenic, cadmium, pesticides and metals including hexavalent chromium and lead. The approach to treating them can vary from city-to-city, state-to-state. In Newburgh, New York, the state is building ...
Objective To investigate the clinical characteristics of acute arsenic poisoning and to improve the level of treatment.Methods Clinical data of 11 cases in our hospital with acute arsenic poisoning through digestive tract route were analyzed.Results Nausea,vomiting and diarrhea were commonly found as the...
Arsenic (As) contamination in water bodies has adverse effects on aquatic organisms. Zinc (Zn), as an important enzyme cofactor and efficient reactive oxygen species scavenger, plays an indispensable role in cellular homeostasis and biological functions. However, there has been less investigation on ...
The leaves of Folium lastidis contain indigo, indigotin, isatan B, indirubin, and inorganic elements including iron, titanium, manganese, zinc, copper, cobalt, nickel, selenium, chrome, arsenic. When dissolved in water, isatan B is turned into indigotin and D-xylo-5-hexulofuranosonic acid...
A review on coal fly ash-based adsorbents for mercury and arsenic removal Coal fly ashFlue gasWastewaterEmissions of mercury and arsenic from flue gas and water have become a great public concern due to their hazards to human ... FO Ochedi,Y Liu,A Hussain - 《Journal of Cleaner Production...