THE QUALITY OF THE SLUDGE PROCEEDED FROM GROUNDWATER TREATMENT
Journal Title: Present Environment and Sustainable Development - Year 2010, Vol 4, Issue 4
Abstract
The Public Service Vrancea Water Supply Rural Systems ensures rural water supply from groundwater. It owns several stations out of which two were taken into account for this study: Vulturu and Cârligele. The possibility to dispose of the resulted sludge, either by depositing or using it in agriculture, was studied. The studied materials can be safely disposed of as their chemical characteristics don’t represent a threat to the environment. They can also be used in agriculture, observing the maximum allowable limits of heavy metals contents in the soils on which sludge can be applied as stipulated by the Order No.49/2004. The use of these materials would even have an amendment effect on acid soils due to their slightly alkaline reaction. An important mineral elements contribution is also to be expected for plant nutrition. No issues regarding nitrates and ammonium contents are to be expected. The studied materials should be carefully applied, especially the Vulturu station one, because of its high zinc and cadmium contents, even if the latter doesn’t overrun the maximum allowable limit. The very low organic carbon content in the sludge resulted from the Vulturu station would bring about disequilibrium in soil if too much is used.
Authors and Affiliations
Mihaela Lungu, Rodica Lazăr, Mihaela Aldea
Keywords
Related Articles
- EP ID EP108034
- DOI -
- Views 86
- Downloads 0
LITTLE ICE AGE IN ROMANIA IN THE VISION OF A SYRIAN TRAVELER
Archdeacon Paul of Aleppo of Damascus accompanied the Patriarch Macarios of Antioch, in Moldavia, Wallachia, Dobrogea for nearly seven years (1652-1659), just in time considered one of the coldest during the Little Ice A...
EVOLUTION OF THE MAIN ENVIRONMENT COMPONENTS IN IASI COUNTY (2001 – 2005)
L`ouvrage en cause représente une synthèse de l`évolution des principaux components de l`environnement du département de Iassy (l`air,l`eau, le sol, la biodiversité). Il s`agit de deux sous titles : Le cadre naturel et l...
THERMAL DIFFERENCES WITHIN BUCHAREST TOWN AREA CASE STUDY: 01.07.2006-31.03.2007
The thermal differences within the Bucharest town-area, as presented in a case study based on hourly measurements in seven fixed-site monitoring stations, made from 01.07.2006 to 31.03.2007, have clearly revealed the tow...
CONSIDERATIONS REGARDING THE CLIMATIC POTENTIAL FOR TOURISIC ACTIVITY IN DOBRUJA
The purpose of this paper was to evaluate the climatic potential for touristic activities in Dobruja so that the valorization of the services in this domain should be as lucrative as possible. It was thus observed...
THE POLLUTION PHENOMENON MODELLING OF THE UNDERGROUND WATER
The industrial waste deposits determine an increased pollution of underground waters. The paper presents the modeling of pollution phenomenon of underground water in an industrial waste deposit area. The pollution phenom...