Research On Ecological Plant Rehabilitation Technology Of Indoor Beneze Pollution

Now Humans has entered the indoor air pollution which has been marked by the third period of pollution,and benzene as indoor one of three "invisible killer" has a strong carcinogenic,serious threat to people's life safety and health.Indoor plant ecological restoration can be efficient and convenient purify indoor air pollutants,more can meet the demand of the public,has become an effective way to control indoor benzene pollution and important means.Study of 13 kinds of indoor ornamental plants,using three repetition,randomized block design of experiment,to 25 mg/m~3,50 mg/m~3,100 mg/m~3 three benzene concentration in airtight fume gas experiment,through the determination of simulation in benzene concentration change,calculate purification rate of benzene and benzene to purify the amount per unit area to determine plant to purify the repair effect of benzene;According to semeiology and physiological and biochemical response study plants indoor plants resistance ability;According to the resistance of plants to the indoor benzene pollution purification ability and research,combined with plants,ornamental characteristics,living habits,etc.,according to different function of bedroom space,build the plant ecological restoration configuration mode,indoor benzene pollution ecological rehabilitation technologies are put forward.The research result indicates:1.Plant purification of indoor benzene pollution:(1)Plant species and concentration of benzene and its synergy between two factors,benzene purification rate of 13 kinds of indoor plants,the influence of the purification quantity per unit area reached extremely significant level;Benzene concentration are more significant influence on the purification rate,plant species amount per unit area of benzene pollution purification effect is more significant.(2)The plant purification rate of benzene with the increase of concentration of benzene are falling.Integrated in the 13 kinds of indoor plants under different concentrations of benzene purification rate of benzene showed that phnom penh mother-in-law of benzene pollution purification ability of the strongest,aloe vera,bamboo's weakest parker.(3)Plant purification quantity per unit area of benzene with the increase of benzene concentration are on the rise.Integrated in the 13 kinds of indoor plants under different concentrations of benzene purification quantity per unit area of benzene showed that phnom penh mother-in-law of benzene pollution purification ability of the strongest,aloe vera,powder is the weakest.(4)Composite under different concentration of benzene in 9 kinds of indoor plant purification rate of benzene,purify the amount per unit area shows that the general effect of the purification ability of benzene pollution the strongest plant variety is phnom penh sansevieria,the weakest for powder.2.Resistance capability of Indoor plants under the stress of air benzene pollution(1)Sensitivity to the indoor benzene pollution plants from strong to weak order: Begonia xaelatior>Calathea insignis?Chlorophytum capense var.variegatum?Chlorophytum comosum > Dieffenbachia picta ? Podocarpus nagi > Epipremnum aureum?Kalanchoe blossfeldiana?Aloe arborescens Mill>Sansevieria trifasciata var.laurentii?Anthurium andraeanum ‘Pink champin'? Anthurium andraeanum Linden?Spathiphyllum floribundum.(2)Plant species and concentration of benzene and its synergy between two factors,the chlorophyll content,MDA content of 13 kinds of indoor plants,the influence of POD activity change all can reach the significant level;Benzene concentration of plant chlorophyll content,MDA content,POD activity change is more significant.(3)Plant species of chlorophyll content,MDA content and POD activity of the differences between the reached extremely significant level.Integrated in the 13 kinds of indoor plant chlorophyll content under different concentrations of benzene,the change of MDA content,POD activity showed that under the stress of benzene pollution,the strongest plant varieties resistance is Sansevieria trifasciata var.laurentii,followed by Kalanchoe blossfeldiana,Begonia xaelatior is weakest.3.According to indoor plants of benzene pollution purification rate,using the method of clean air(CADR),set up Sansevieria trifasciata var.laurentii,Spathiphyllum floribundum,Kalanchoe blossfeldiana,Aloe arborescens Mill of indoor plants configuration model.