| 水蚯蚓微生物共生系统处理城镇污水工程规模试验研究 |
| 摘要点击 3207 全文点击 3755 投稿时间：2008-12-24 修订日期：2009-06-15 |
| 查看HTML全文
查看全文 查看/发表评论 下载PDF阅读器 |
| 中文关键词 水蚯蚓-微生物共生系统 城镇污水 工程规模 |
| 英文关键词 symbiotic system consisting of tubifex and microbe municipal sewage full-scale |
|
| 中文摘要 |
| 在生物接触氧化池中接种霍甫水丝蚓形成水蚯蚓与微生物的共生系统，水蚯蚓附着在填料的外层.当水蚯蚓湿重质量浓度为31.3 g/L左右时，系统中形成“污染物-微生物-水蚯蚓”循环食物链并基本达到平衡.长时间处理水量为20 000 m3·d-1的现场大规模对比工程试验研究表明，水蚯蚓可全面提高出水水质.当进水COD为130～459 mg·L-1，NH+4-N为14.21～27.46 mg·L-1，TP 为1.60～6.93 mg·L-1，SS为60～466 mg·L-1时，可使COD去除率提高8.7%，SS去除率提高13.6%.水蚯蚓会使系统的氨氮有所增加，适当的运行方式可使氨氮出水稳定在5mg·L-1以下.水蚯蚓-微生物共生系统具有很好的除磷效果，有很强的抗冲击负荷能力及较大的处理潜能. |
| 英文摘要 |
| A symbiotic system consisting of tubifex and microbe was formed when tubifex was incubated in the biological contact oxidation process，the tubifex attached to the outer layer of the carriers. When the density of tubifex was about 31.3 g/L，a recycling food chain between corpse of tubifex and excrement and wastewater and microbe and sludge was formed and it could reach balance. The large scale control experimental system for treating 20 000 m3·d-1 municipal sewage was carried out for a long time. The result showed that tubifex could improve water quality in the effluent. When the concentration in the influent of COD，NH+4-N，TP and SS were 130-459，14.21-27.46，1.60-6.93，60-466 mg·L-1，respectively，the removal rates of COD and SS can be improved by 8.7% and 13.6%. However， tubifex can also increase the concentration of NH+4-N in the system，but a proper operation can make the effluent concentration of NH+4-N below 5 mg·L-1 stably. The symbiotic system consisting of tubifex and microbe has very good phosphorus removal efficiency. The reactor has a high toleration to loading shock and it could keep the effluent quality stable. |
