Topic
Effluent
About: Effluent is a research topic. Over the lifetime, 32668 publications have been published within this topic receiving 533991 citations.
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TL;DR: In this article, a detailed characterisation of both raw and treated effluents from the three main treatment plants in this area which differ both in size and type of treatment was made.
111 citations
TL;DR: The results show that surface water ecosystems in unconfined aquifer settings are susceptible to contamination by estrogenic and other biologically active OWCs through recharge from aquifers contaminated by residential septic systems.
Abstract: Increasing residential development in watershed recharge areas increases the likelihood of groundwater and surface water contamination by wastewater effluent, particularly where on-site sewage treatment is employed. This effluent contains a range of compounds including those that have been demonstrated to mimic or interfere with the function of natural hormones in aquatic organisms and humans. To explore whether groundwater contaminated by discharge from on-site septic systems affects water quality in surface water ecosystems, we measured steroidal hormones, pharmaceuticals, and other organic wastewater compounds (OWCs) in water collected from six aquifer-fed ponds in areas of higher and lower residential density on Cape Cod (Massachusetts, USA). We detected both a greater number and higher concentrations of OWCs in samples collected from ponds located in higher residential density areas. Most often detected were the steroidal hormones androstenedione, estrone, and progesterone and the pharmaceuticals carbamazepine, pentoxifylline, sulfamethoxazole, and trimethoprim. Of particular concern, estrogenic hormones were present at concentrations approaching those that induce physiological responses in fish. While a number of papers have reported on surface water contamination by OWCs from wastewater treatment plants, our results show that surface water ecosystems in unconfined aquifer settings are susceptible to contamination by estrogenic and other biologically active OWCs through recharge from aquifers contaminated by residential septic systems.
111 citations
TL;DR: The population changes at various steps of effluent treatment plant (ETP) like collection, aeration, clarification, liquid sludge, driedSludge, high-pressure filter and treated wastewater are studied to study the distribution of bacteria as free floating in liquid and adherent to suspended particles.
111 citations
TL;DR: Low salinity exhibited more stable nitrate removal efficiency, but caused adverse effects such as excessive effluent dissolved organic carbon (DOC) and dissimilation nitrate reduce to ammonia (DNRA) activity, which might be the primary cause of varied reactor performance.
111 citations
TL;DR: A bioanalytical test battery was used to monitor the removal efficiency of organic micropollutants during advanced wastewater treatment in the South Caboolture Water Reclamation Plant, Queensland, Australia as discussed by the authors.
111 citations