نتایج جستجو برای: thms
تعداد نتایج: 398 فیلتر نتایج به سال:
Abstract In this study, novel green and economical techniques were established to synthesize modified banana peel hydrochar (HBP) through hydrothermal carbonization. Chitosan nanoparticles, a adsorbent with multiple features, prepared, characterized, used enhance the performance of in THMs removals. The optimal method for carbonization was determined based on previously cited methods. dried pee...
(THM) being used clinically as complementary medicine or alternative medicine is increasing. As well as this increase in popularity of THM in clinical situations, the co-administration of THM and drugs (manufactured chemicals) has also increased remarkably. Especially in cancer chemotherapy, it is true that the incidence of co-administration of THM and anticancer drugs is high. However, there i...
2016 © American Water Works Association JOURNAL AWWA OCTOBER 2016 | 108:10 Water disinfection is one of the most important health advances, as millions of people worldwide receive quality drinking water every day from water systems (Calderon 2000). Chlorine, chloramines, chlorine dioxide, ozone, and ultraviolet irradiation are the most common disinfectants in use today; each produces its own su...
By all accounts, disinfection of drinking water is one of the major public health triumphs of the 20th century. No human endeavor, however, is without risk; more than 30 years ago it was determined that chlori nation of water resulted in formation of disinfection byproducts (DBPs). Several of these, such as the trihalomethanes (THMs) and haloacetic acids (HAAs), were subsequently observed to ...
BACKGROUND Levels of byproducts that result from the disinfection of drinking water vary within a water distribution system. This prompted us to question whether the risk for rectal cancer also varies, depending upon one's long term geographic location within the system. Such a geographic distribution in rectal cancer risk would follow naturally from an association between level of byproduct an...
hlorine is the most widely used oxidant in the United States for water disinfection. But chlorine reacts with the natural organic matter (NOM) that remains after treatment and forms halogenated by-products. Only some of these by-products have been identified, such as trihalomethanes (THMs) and haloacetic acids (HAAs), which are suspected to be human carcinogens. In 1979 the US Environmental Pro...
هدف از این پژوهش، توسعه و ارزشیابی استفاده از روش فضای فوقانی در ترکیب با کروماتوگرافی گازی مجهز به آشکارساز رسانایی الکترولیتی برای اندازه گیری تری هالومتان ها (thms) در آب آشامیدنی است. اثر عامل های مؤثر مانند دمای آب، قدرت یونی محیط، زمان هم زدن و حجم نمونه بر عملکرد روش بررسی شد. اندازه گیری ها با استفاده از استاندارد داخلی 1-کلرو-2- بروموپروپان انجام شدند. پاسخ برای تمامی تری هالومتان ها د...
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