Domestic wastewater treatment with means of soilless cultivated plants

Abstract

Abstract: The study on the domestic wastewater treatnent with soilless cultivated Canna generalis, Iponoea aauatica, Oruza sativa and O.meyeriana subsp.granulata shows that in static experiment, the average removal rate of COD and total N and P is respectively 8.7 ～19.8, 20.3～66.6 and 23.5～67.1% higher than control. The removal capacity of these plants is in the order of Canna generalis and Iponoea aquatica > Oryza sativa > O.meyeriana subsp granulata. In third grade plant lagoon system, the removal rate of BOD₅,COD and total N and P is respectively 79.7, 71.1, 66.5 and 60.7%; but in artificial rapid infiltration soil and plant lagoon system, it is 83.9, 79.3, 64.8 and 40.9% respectively.

Key words: Soilless culture, Canna generalis, Iponoea aquatica, Wastewater treatment, protected cultivation to promote early maturing, volatile compounds, grape, blue light, ultraviolet light, red-blue light

Li Fangbai, Wu Qitang . Domestic wastewater treatment with means of soilless cultivated plants[J]. Chinese Journal of Applied Ecology, 1997, 8(1): 88-92.

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