Qualitative monitoring of a treated wastewater reuse extensive distribution system: COD, TSS, EC and pH

Manios, T; Gaki, E; Banou, S; Ntigakis, D; Andreadakis, A

dc.contributor.author	Manios, T	en
dc.contributor.author	Gaki, E	en
dc.contributor.author	Banou, S	en
dc.contributor.author	Ntigakis, D	en
dc.contributor.author	Andreadakis, A	en
dc.date.accessioned	2014-03-01T01:24:54Z
dc.date.available	2014-03-01T01:24:54Z
dc.date.issued	2006	en
dc.identifier.issn	0378-4738	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/17507
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-29944437797&partnerID=40&md5=90b0ac045231365cc0c96e40312f3ea6	en
dc.relation.uri	http://www.teicrete.gr/wml/pdf-files/20.pdf	en
dc.subject	COD	en
dc.subject	Distribution system	en
dc.subject	EC	en
dc.subject	Irrigation	en
dc.subject	ph	en
dc.subject	Reuse	en
dc.subject	TSS	en
dc.subject	Wastewater	en
dc.subject.classification	Water Resources	en
dc.subject.other	Effluents	en
dc.subject.other	Electric conductivity	en
dc.subject.other	Irrigation	en
dc.subject.other	Water distribution systems	en
dc.subject.other	Water tanks	en
dc.subject.other	Distribution system	en
dc.subject.other	EC	en
dc.subject.other	TSS	en
dc.subject.other	Wastewater treatment	en
dc.subject.other	chemical oxygen demand	en
dc.subject.other	irrigation system	en
dc.subject.other	monitoring	en
dc.subject.other	wastewater	en
dc.subject.other	water quality	en
dc.subject.other	Chemical Oxygen Demand	en
dc.subject.other	Effluent Treatment	en
dc.subject.other	Effluents	en
dc.subject.other	Irrigation	en
dc.subject.other	Orchards	en
dc.subject.other	Reuse	en
dc.subject.other	Suspended Solids	en
dc.subject.other	Water Supply	en
dc.title	Qualitative monitoring of a treated wastewater reuse extensive distribution system: COD, TSS, EC and pH	en
heal.type	journalArticle	en
heal.language	English	en
heal.publicationDate	2006	en
heal.abstract	During a five-month summer period, samples of tertiary treated wastewater flowing in an extensive distribution system composed of storage tanks and pipes, were collected at two-week intervals from 21 different sampling points, including the exit from the wastewater treatment plant ( WWTP). The WWTP producing this effluent treated wastewater from one of the most popular European tourist resorts on the north coast of the island of Crete, at the southernmost point of Greece. Crete is a semi-arid region where 80% of the freshwater resources are consumed by agriculture. More than 3 000 000 tourists visit the island during the summer period and the average summer equivalent population treated by the plant exceeds 50 000, falling to under 5 000 in the winter. The samples were analysed for chemical oxygen demand ( COD), total suspended solids ( TSS), electrical conductivity (EC) and pH. The average COD and TSS in the WWTP exit were within the reuse limits for orchard irrigation, being 80 mg/l and 25 mg/l respectively. Both recorded higher values in the other sampling points, but still as an average below the above-mentioned limits. COD values along the distribution system presented a strong correlation with the WWTP's effluent quality, affected mainly by the condition of the collector, whereas TSS presented a completely different behaviour. EC and pH exceeded the optimum operation and reuse guidelines, mainly due to excessive septage in the WWTP. However, both presented a stable and predictable behaviour in correlation to the effluent quality, in terms of both distance and time, similar to that of COD. In terms of these parameters it is safe to suggest that,, achieving the required quality standards in the WWTP exit, the wastewater quality should be considered adequate for reuse for irrigation.	en
heal.publisher	WATER RESEARCH COMMISSION	en
heal.journalName	Water SA	en
dc.identifier.isi	ISI:000235130000013	en
dc.identifier.volume	32	en
dc.identifier.issue	1	en
dc.identifier.spage	99	en
dc.identifier.epage	104	en