冬季环境下蒜苗、小葱、青菜净化生活污水的水培试验

Comparative Study on Purification of Domestic Wastewater by Garlic Sprouts,Allium Ascalonicum,and Brassica Chinensis in Water Culture

通过在冬季环境条件下采用不同水质水培蒜苗、小葱和青菜3种经济作物的实验,研究了它们在自来水、模拟生活污水和生活污水中的生长状况及其净化水质的能力。结果表明,在3种不同水质中,蒜苗增重最大,净化水质效果最好,对生活污水中COD cr、TN和TP的去除率分别达到80.9%、97.2%和97.9%,且3种水培植物均可作为低温季节污水水生生物处理系统越冬备选植物。

This paper relies on the water culture of 3 kinds of economic crops（ Garlic sprouts, Allium as- calonicum, and Brassica chinensis） in different water qualities under winter condition, studies each of their growth status and purification effect on water quality of running water, synthetic domestic wastewater and domestic wastewater. The result shows that among those 3 kinds of water qualities, Garlic sprouts have the highest growth rate and best purification effect. Its removal rates of CODcr, TN and TP reach 80.9%, 97.2% and 97.9% respectively. And these 3 kinds of crops can be used as overwintering option crops for wastewater aquatic organism treatment system in low temperature seasons.