OPTIMAL SOLUTIONS FOR THE OPERATION AND MAINTENANCE OF A WASTEWATER TREATMENT SYSTEM WITH FILTERS PLANTED WITH REEDS

References: 14th International Multidisciplinary Scientific GeoConference SGEM 2014, www.sgem.org, SGEM2014 Conference Proceedings, ISBN 978-619-7105-20-9 / ISSN 1314-2704, June 19-25, 2014, Book 6, Vol. 1, 459-466 pp

ABSTRACT
A wastewater treatment plant by growing plants is a natural, inexpensive and safe
operation for wastewater treatment in rural areas. Ecological success of this technique with low maintenance and stable as the process is harmonized interaction between plants and microorganisms substrate The aim of this work is to identify the optimal solutions for operating and maintenance as well as a more efficient system of wastewater treatment plant by means of filters planted with reeds. It is known that this system of wastewater treatment plant serves the localities of 3000 inhabitants, require an operating staff, average skill; minimum maintenance services; the minimum land area required for construction of wastewater treatment plant, i.e. two square feet per capita. New technology has many advantages that relate primarily to costs. Thus, if the treatment plant based on activated sludge system amounts to 1,200,000 euros, the system "filters planted with reeds’ reach 830.000 euros. At the first station, operating costs / capita / year are worth 38 euros, while the second at 3.05 euros. Exploiting a period of 25 years requires an investment of nearly three million for the first system and
the second for just 230,000 euros.

Keywords: wastewater treatment plant, filters planted with reeds, sludge, organic
matter