| Popis: |
Artificial organic polymer flocculants has been widely applied in water treatment; however, disadvantages of nonbiodegradable and poisonous may cause another environmental problem. This paper established an effective water treatment technique using Abelmoschusmoschatu (Okra) in combining of glue extraction process and flocculating process, with fully consideration of factors such as treating time, cost, and efficiency. Results showed that ethanol extraction was an effective method for extraction of glue form Okra. After being soaked in distilled water overnight with ratios of material to solvent, and was extracted by ethanol with volume percentage of 50% at stable temperature of 70 °C for one hour, the extraction rate of Okra glue could be as high as 18.38%. The glue usage of 0.015-0.020 g.L-1 and flocculating time of five minutes could be the optimal usage in treating suspending liquid of kaolin, with the turbidity of 3.0 g.L-1. The processes are low cost, simple, efficient, and low pollution, having broad application prospects. |
