Orthogonal experiment on reclaimed water treatment and economic optimization model in green building

来源期刊：中南大学学报(英文版)2009年第z1期

论文作者：何强 张成 柴宏祥 樊明玉

文章页码：322 - 328

Key words：green building； coagulation-sedimentation； constructed wetlands； reclaimed water； economic optimization model

Abstract: The efficacy of superior drainage in green building treated by combinational technique of coagulation sedimentation and constructed wetland was launched. The results show that the regression equation relating to effluent BOD₅,cubage load (N_v),temperature (t) and addition dosage (ρ) is BOD₅=2.05N_v-0.41t-0.82ρ+38.9. The orthogonal experiment results of constructed wetland post-treatment show that the regression equation relating to effluent BOD₅,cubage load (N_A),and temperature (t) is BOD₅=1 190N_A-0.32t+12.2. Based on the two orthogonal regression equations,combined of green building municipal gray reclaimed water quantity requirements in different seasons,a technology investment on economic optimization model of combinational technique was established. The results offer technological support for reclaimed water treatment,which regards superior drainage as the source and is purified by combinational technique of coagulation sedimentation and constructed wetland. According to the model,the reasonable scale of reclaimed water treatment systems can be determined,the treatment efficacy can be well predicted,and both the design and operating can be effectively guided.