摘要
对红树植物塘处理农村生活污水的效果进行了中试研究。结果表明:红树植物在污染的淡水环境中能够很好生长,且对污染水体具有一定净化效果。在水力停留时间为3～4 d的条件下,流经红树塘的生活污水黑臭消失,浊度下降,透明度提高,出水DO浓度饱和度达到85%以上,进水COD、NH3-N和TP的去除效果分别达到73.3%、62.8%和36.7%。中试试验连续运行期间(约30 d),海桑株高平均增加0.11倍,基径平均增加0.035倍;桐花株高平均增加0.16倍,基径增加0.038倍。红树植物湿地处理系统作为一种低成本同时具有景观效果、重金属吸附等附加价值的污水处理技术,具有良好的推广应用前景。
A pilot-scale experiment was conducted for evaluating the effects of mangrove plants in ponds on rural domestic wastewater disposal. Results showed that mangrove plants grew well in contaminated freshwater, and had a good cleaning effect on the polluted water; Under the condition that hydraulic retention time （HRT） was 3 - 4 days, black smelly of the domestic wastewater which treated with mangrove plants disappeared and the turbidity lowered, moreover, the average removals of COD , NH3-N and TP were 73.3% ,62. 8% and 36. 7% , respectively. At the period of pilot-scale experiment （about 30 days）, for Sonneratia caseolaris, the average plant height increased by 0.11 times, and the average branch diameter increased by 0.035 times ; and for Aegiceras corniculatum, the average plant height increased by 0.16 times, and the average branch diameter increased by 0.038 times. As a low cost wastewater treatment technology, the mangrove wetland system also had a landscape effect and adsorption function of heavy metals. Therefore, the mangrove wetland system had a good application prospect.
出处
《水生态学杂志》
北大核心
2012年第5期25-30,共6页
Journal of Hydroecology
基金
深圳市水务局政府采购项目(SZZDZB-2009-A149F)
