{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2023,9,16]],"date-time":"2023-09-16T07:49:45Z","timestamp":1694850585991},"reference-count":16,"publisher":"Wiley","issue":"5","license":[{"start":{"date-parts":[[2005,9,1]],"date-time":"2005-09-01T00:00:00Z","timestamp":1125532800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"name":"North Carolina Urban Water Consortium"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Water Environment Research"],"published-print":{"date-parts":[[2005,9]]},"abstract":"<jats:p>Many publicly owned treatment works in North America are exceeding permitted limits for total cyanide in their wastewater treatment effluents. A recently introduced rapid, segmented, flow\u2010injection analysis procedure using UV digestion and amperometric detection of the membrane\u2010separated cyanide was used to investigate the various scenarios by which elevated cyanide levels might be present in wastewater treatment plant effluent. A number of significant interferences can produce false positive bias during sample analysis with the traditional acid distillation technique, but are minimized or absent with the new analytical method. However, increased levels of cyanide were found in some chlorinated wastewaters compared to the levels before chlorination, suggesting a fast reaction mechanism associated with the disinfectant and some precursor in the wastewater. In particular, the contact of chlorine with nitrite in the presence of a carbon precursor appears to contribute to cyanide formation during wastewater treatment and sample handling. This paper explores the scenarios under which cyanide can form during wastewater treatment as well as those in which a false bias for total cyanide can be obtained during sample processing and provides guidance for appropriate sample handling, screening, and processing to ensure valid analytical results.<\/jats:p>","DOI":"10.2175\/106143005x67403","type":"journal-article","created":{"date-parts":[[2005,10,17]],"date-time":"2005-10-17T09:58:55Z","timestamp":1129543135000},"page":"491-499","source":"Crossref","is-referenced-by-count":4,"title":["Insights to False Positive Total Cyanide Measurements in Wastewater Plant Effluents"],"prefix":"10.1002","volume":"77","author":[{"given":"Howard S.","family":"Weinberg","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Steven J.","family":"Cook","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Philip C.","family":"Singer","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2005,9]]},"reference":[{"key":"e_1_2_5_2_1","volume-title":"Standard Methods for the Examination of Water and Wastewater","author":"American Public Health Association; American Water Works Association; Water Environment Federation","year":"1998"},{"key":"e_1_2_5_3_1","volume-title":"Water Environment Laboratory Solutions;","author":"Ascorbic Acid Causes Cyanide False Positives","year":"1994"},{"key":"e_1_2_5_4_1","doi-asserted-by":"crossref","first-page":"815","DOI":"10.1016\/0043-1354(76)90102-0","article-title":"Mathematical Analysis of the Chemical System 'Cyanide\u2010Heavy Metals' in Water\u2010\u2010\u2010Determination of Components and Toxicity of the System\u2010\u2010\u2010I. 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