Assessing technological feasibility for wastewater reclamation based on early life stage toxicity of Japanese medaka (Oryzias latipes)
文献类型：期刊论文
| 作者 | Zha, JM; Wang, ZJ |
| 刊名 | AGRICULTURE ECOSYSTEMS & ENVIRONMENT
 |
| 出版日期 | 2005 |
| 卷号 | 107期号:2015-02-03页码:187-198 |
| 关键词 | advanced treatment technologies secondary effluents toxicity bioassay Japanese medaka (Oryzias latipes) |
| 英文摘要 | To assess technological feasibility for reuse of secondary effluent from sewage treatment plant, the effects of raw sewage (RW) water sample and effluents samples from secondary treatment (SS), ultrafiltration treatment after SS (SS-UF), microfiltration treatment after SS (SS-MF), activated carbon column adsorption after SS (SS-AC), as well as reverse osmosis treatment after SS-UF (SS-UF-RO) were assessed using embryo larval development of Japanese medaka (Oryzias latipes). Samples of RW and effluents from secondary treatment were taken from Beixiaohe sewage treatment plant (STP) in Beijing, China. Newly fertilized embryos (< 5-h-old) were exposed to these water samples at different concentration gradients (including 100, 50, 25, 12.5, 6.25% effluent concentrations) in a 24-h static renewal system at 25 +/- 1 degrees C for 15 day post-hatch. The assay considered both acute toxicity using endpoint of 96-h larval morality and chronic toxicity using endpoints including the time to hatch, hatching success, deformity, growth rate, swim-up failure, accumulative mortality and sex ratio. In the 96-h larval mortality test, 96h LC50 for RW, and effluents from SS, SS-UF and SS-MF on medaka larval were 33.7, 62.9, 60.0, 64.4% concentrations, respectively. However, no acute toxicity was observed for effluents from SS-AC and SS-UF-RO. No embryos exposed to 100% RWeffluent hatched. Most of the endpoints were alternated when the fish was exposed to effluents from SS, RW, SS-LTF, SS-MF that were 50-100% concentration, except those of growth and time to hatch (P < 0.05). The sex ratio of the larvae was alternated when exposed to 25% effluents from RW and 50% effluents from SS, SS-UF and SS-MF. Sex ratios in treatments with effluents from SS-AC and SS-UF-RO were not significantly different with the controls. However, embryos lesions and swim-up failure were still significantly different from the controls for 100% effluent from SS-AC (P < 0.05) and swim-up failure and larval growth could be observed for 100% effluent from SS-UF-RO (P < 0.05). We conclude that acute toxicity was present in the sewage water and secondary treatment could remove only part of the toxicants. As advanced treatment technologies, membrane technologies could not further remove trace toxicants and endocrine disruptors. Activated carbon adsorption and reverse osmosis were effective in removing most of the toxicants, but discharge without dilution could still manifest potential ecological risk on receiving aquatic biology. We conclude that activated carbon adsorption and reverse osmosis are relatively feasible technologies for reuse of secondary effluents from sewage treatment plant. (c) 2004 Elsevier B.V. All rights reserved. |
| 学科主题 | Agriculture; Environmental Sciences & Ecology |
| 研究领域[WOS] | Agriculture ; Environmental Sciences & Ecology |
| WOS记录号 | WOS:000228596400008 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/23269]  |
| 专题 | 生态环境研究中心_环境水质学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Zha, JM,Wang, ZJ. Assessing technological feasibility for wastewater reclamation based on early life stage toxicity of Japanese medaka (Oryzias latipes)[J]. AGRICULTURE ECOSYSTEMS & ENVIRONMENT,2005,107(2015-02-03):187-198. |
| APA | Zha, JM,&Wang, ZJ.(2005).Assessing technological feasibility for wastewater reclamation based on early life stage toxicity of Japanese medaka (Oryzias latipes).AGRICULTURE ECOSYSTEMS & ENVIRONMENT,107(2015-02-03),187-198. |
| MLA | Zha, JM,et al."Assessing technological feasibility for wastewater reclamation based on early life stage toxicity of Japanese medaka (Oryzias latipes)".AGRICULTURE ECOSYSTEMS & ENVIRONMENT 107.2015-02-03(2005):187-198. |
入库方式： OAI收割
来源：生态环境研究中心
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