Occurrence and behavior of wastewater indicators in the Santa Ana River and the underlying aquifers

Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/28366

Title:	Occurrence and behavior of wastewater indicators in the Santa Ana River and the underlying aquifers
Authors:	Ding,WH;Wu,J;Semadeni,M;Reinhard,M
Contributors:	中央大學
Keywords:	GAS-CHROMATOGRAPHY;ALLUVIAL AQUIFER;WATER;GROUNDWATER;INFILTRATION;IDENTIFICATION;ACID;METABOLITES;DEGRADATION;RESIDUES
Date:	1999
Issue Date:	2010-06-29 19:47:10 (UTC+8)
Publisher:	化學研究所
Abstract:	The occurrence and behavior of wastewater indicator compounds in the Santa Ana River (SAR) water and the underlying aquifer recharged by the SAR has been studied. The SAR contains a high proportion of tertiary treated wastewater effluents, up to 100% during summer and fall. The following water quality parameters were quantified: four specific wastewater indicator compounds, ethylene diaminetetraacetic acid (EDTA), nitrilotriacetic acid (NTA), a naphthalene dicarboxylate (NDC) isomer, alkylphenol polyethoxy carboxylates (APECs), and selected haloacetic acids (HAAs), nitrate, dissolved oxygen (DO), I)OC, total carbohydrate, and phenolic substances. Statistical analysis indicated that normal distribution was adequate to describe the probability distribution of the constituents in most cases. In the river, the concentrations of wastewater indicator compounds decreased as the fraction of storm runoff increased. EDTA and NDC were detected in a monitoring well near the river and in two production wells 1.8 and 2.7 km down gradient with little apparent attenuation. By contrast, NTA, APECs, bromochloro- and dibromoacetic acids appeared to be attenuated significantly during infiltration of river water and groundwater transport. (C) 1999 Elsevier Science Ltd. All rights reserved.
Relation:	CHEMOSPHERE
Appears in Collections:	[Graduate Institute of Chemistry] journal & Dissertation

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