Treatment of wastewater by constructed wetland in small settlements

• Published in: Water Science & Technology Vol. 41; no. 1; pp. 69 - 72
• Main Authors: AYAZ, S. C, AKCA, I
• Format: Conference Proceeding Journal Article
• Language: English
• Published: London IWA 2000; IWA Publishing
• Subjects: Applied sciences; Artificial wetlands; Biological and medical sciences; Biological treatment of waters; Biotechnology; Buildings. Public works; Construction costs; Environment and pollution; Environmental monitoring; Exact sciences and technology; Fillers; Fundamental and applied biological sciences. Psychology; Industrial applications and implications. Economical aspects; Other wastewaters; Performance assessment; Phosphates; Pollution; Pollution control; Removal; Sedimentation tanks; Sewerage works: sewers, sewage treatment plants, outfalls; Sewerage. Sewer construction; Suspended particulate matter; Suspended solids; Tanks; Technology; Wastewater; Wastewater treatment; Wastewaters; Water treatment and pollution; Wetlands; Turkey; Domestic waste water; Small dimension; Artificial medium; Waste water purification; Wetland; Sewage treatment plant; Biological purification
• ISBN: 1900222205; 9781900222204
• ISSN: 0273-1223; 1996-9732
• DOI: 10.2166/wst.2000.0012

The constructed wetland is a low-cost technology to control environmental pollution. The system is especially suitable for small settlements. An innovative constructed wetland technology is described in this paper. A pilot plant was used to assess the performance of the system. The experimental system consists of two serial connected tanks that settled up with fillers and Cyperus as treatment media. Wastewater is recycled periodically upward and downward between the two tanks. The treatment performance was monitored in different loading conditions in a one-year period. The average COD removal efficiency of 90% was observed at 122 g COD/m super(2).day average loading conditions. Other average removal values in the same conditions are as follows: suspended solid 95%, TKN 77%, total nitrogen 61%, PO sub(4)-P 39%. The land requirement for this system will be 0.82 m super(2) per capita when applying as full-scale system.