title: Chemical solutions for greywater recycling.
abstract: Greywater recycling is now accepted as a sustainable solution to the general increase of the fresh water demand, water shortages and for environment protection. However, the majority of the suggested treatments are biological and such technologies can be affected, especially at small scale, by the variability in strength and flow of the greywater and potential shock loading. This investigation presents the study of alternative processes, coagulation and magnetic ion exchange resin, for the treatment of greywater for reuse. The potential of these processes as well as the influence of parameters such as coagulant or resin dose, pH or contact time were investigated for the treatment of two greywaters of low and high organic strengths. The results obtained revealed that magnetic ion exchange resin and coagulation were suitable treatment solutions for low strength greywater sources. However, they were unable to achieve the required level of treatment for the reuse of medium to high strength greywaters. Consequently, these processes could only be considered as an option for greywater recycling in specific conditions that is to say in case of low organic strength greywater or less stringent standards for reuse.
authors.affiliation: Centre for Water Science, School of Applied Sciences, Cranfield University, Cranfield MK43 0AL, United Kingdom.
authors.forename: Marc
authors.initials: M
authors.lastname: Pidou
authors.forename: Lisa
authors.initials: L
authors.lastname: Avery
authors.forename: Tom
authors.initials: T
authors.lastname: Stephenson
authors.forename: Paul
authors.initials: P
authors.lastname: Jeffrey
authors.forename: Simon A
authors.initials: SA
authors.lastname: Parsons
authors.forename: Shuming
authors.initials: S
authors.lastname: Liu
authors.forename: Fayyaz A
authors.initials: FA
authors.lastname: Memon
authors.forename: Bruce
authors.initials: B
authors.lastname: Jefferson
mesh_terms: D052918:Environmental Restoration and Remediation / Q000379:methods*; D006863:Hydrogen-Ion Concentration; D012996:Solutions; D014873:Water Pollutants
chemical_list: D012996:Solutions; D014873:Water Pollutants