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: Canonical correspondence analysis based on the results of next-generation sequencing showed that the time of adaptation significantly influenced the microbial composition of the granules, and molecular data given here provide insight into the ecology of mature aerobic granules from a full-scale facility.
Abstract: By modification of the operational conditions of batch reactors, a municipal wastewater treatment plant was upgraded from activated sludge to aerobic granular sludge (AGS) technology. After upgrading, the volume of the biological reactors was reduced by 30%, but the quality of the effluent substantially improved. The concentration of biomass in the reactors increased twofold; the average biomass yield was 0.6 g MLVSS/g COD, and excess granular sludge was efficiently stabilized in aerobic conditions. Canonical correspondence analysis based on the results of next-generation sequencing showed that the time of adaptation significantly influenced the microbial composition of the granules. In mature granules, the abundance of ammonium-oxidizing bacteria was very low, while the abundance of the nitrite-oxidizing bacteria Nitrospira sp. was 0.5 ± 0.1%. The core genera were Tetrasphaera, Sphingopyxis, Dechloromonas, Flavobacterium, and Ohtaekwangia. Bacteria belonging to these genera produce extracellular polymeric substances, which stabilize granule structure and accumulate phosphorus. The results of this study will be useful for designers of AGS wastewater treatment plants, and molecular data given here provide insight into the ecology of mature aerobic granules from a full-scale facility.
146 citations
TL;DR: In this article, treated effluent from an aerated lagoon and facultative pond system in southern Portugal, was used to irrigate fields planted to maize (Zea mays L.).
146 citations
TL;DR: An integrated system of two-stage microbial fuel cells and immobilized biological aerated filters was used to treat palm oil mill effluent at laboratory scale and most of the contaminants were satisfactorily biodegraded by the integrated system.
146 citations
TL;DR: In this paper, the feasibility of using sub-surface horizontal flow constructed wetlands to treat municipal wastewater in Hong Kong was investigated and two different hydraulic retention times and different types of treatments (with and without vegetation) were investigated.
146 citations
TL;DR: A prototype-scale Twin-Layer photobioreactor immobilizing the green alga Halochlorella rubescens on vertical sheet-like surfaces was constructed and operated using primary and secondary municipal wastewater, and the integration of microalgae into wastewater treatment processes is a promising approach.
146 citations