title: Effect of preozonation on improvement of settleability of solid in highly concentrated organic wastewater of Japanese wheat and sweet potato spirit-distillery.
abstract: Solid-liquid separation of the wastewater is very difficult because of high viscosity and high SS concentration. In this study, the effectiveness of preozonation on improving the settleability of the solids in wheat and sweet potato wastewaters was investigated using a bench-scale system and pilot treatment system respectively. Results showed that solid-liquid separation in the wheat wastewater was greatly improved by the decanter in the system (SS reduction from 24100 mg/L to 100 mg/L). However, preozonation practice did not show a significant effect on solid-liquid separation of the sweet potato wastewater. Effect of preozonation on solid-liquid separation between wheat and sweet potato wastewater showed different.
authors.affiliation: College of Environmental Technology, Toyama Prefectural University, Japan. tateda@pu-toyama.ac.jp
authors.forename: Masafumi
authors.initials: M
authors.lastname: Tateda
authors.forename: Masanori
authors.initials: M
authors.lastname: Fujita
authors.forename: Michihiko
authors.initials: M
authors.lastname: Ike
authors.forename: Yen-feng
authors.initials: YF
authors.lastname: Qui
authors.forename: Satoru
authors.initials: S
authors.lastname: Kokubo
mesh_terms: D001673:Biodegradation, Environmental; D007220:Industrial Waste / Q000032:analysis*; D027723:Ipomoea batatas / Q000737:chemistry; D007564:Japan; D008855:Microscopy, Electron, Scanning; D010126:Ozone / Q000737:chemistry*; D014908:Triticum / Q000737:chemistry; D014865:Waste Disposal, Fluid / Q000295:instrumentation / Q000379:methods*
chemical_list: D007220:Industrial Waste; D010126:Ozone