ANALYSIS OF WASTE WATER FROM ECOLOGICAL CAR WASH – A CASE STUDY
Journal Title: Journal of Science And Arts - Year 2011, Vol 15, Issue 2
Abstract
Wastewaters resulted from different stages of washing process from ecological car wash were investigated for its physicochemical parameters and several heavy metals contents. For this purpose 75 samples were collected and analyzed by conductometric, potentiometric techniques and by Flame Atomic Absorption Spectrometry during of November 2010. The results showed that the amount of zinc, copper, cadmium and lead elements in wastewater samples were higher than the Maximum Admitted Level (MAL) values for investigated heavy metals, according to the Order 161/2006, after washing different cars in one week (from Monday to Friday at 14,00). The increase of Pb, Cu, Cd, and Zn concentrations is visible (average weekly collections) and these were higher especially on rainy days when cars came with a load more visible than in the days with good weather. In according with the Order 161/2006, regarding pH tolerance limit, the mean pH values for all collected samples were between 6.00 and 9.00. The temperature ranged between 14.10 - 17.10°C with an average value of 14.91±1.61°C. The highest values for conductivity, turbidity and TDS was found for samples Sp2, Sp5, Sp8, Sp11 and Sp14, before entrance in the first separator.
Authors and Affiliations
CRISTIANA RADULESCU, CLAUDIA STIHI, ION POPESCU, VASILE NITESCU, IOANA DULAMA, ANCA GHEBOIANU, ANDREI CHILIAN, ALIN BUCURICA, OANA BANCUTA
Keywords
Related Articles
- EP ID EP97512
- DOI -
- Views 261
- Downloads 0
THE ATTITUDE OF FINAL YEAR STUDENTS TOWARDS LEARNING OF PHYSICS IN IHIALA LOCAL GOVERNMENT AREA OF ANAMBRA STATE
The deterioration in the popularity of physics education over the period of secondary schooling and beyond have been the reason for serious concern on educational and economic grounds. The purpose of this study was to fi...
A STUDY OVER ELECTROCHEMICAL DEPOSITION OF NANOSTRUCTURES
This paper treats the problem of nanostructured materials manufactured through electrodeposition and electroless processes for industrial applications in order to demonstrate the vast richness promised by electrochemistr...
STUDY TROUGH METALLOGRAPHICAL METHOD AND X-RAY FLUORESCENCE<br /> TECHNIQUE, ON THE SOME ROMAN BROOCHES DISCOVERED AT TOMIS-CONSTANTA
XRF method was used at the same time with a metallographic study in order to determine the concentration of the main compounds of raw materials and, in the same time, of the alloy types used in the ancient period. I...
ON PARTIAL QUASI-BILINEAR GENERATING FUNCTIONS INVOLVING MODIFIED LAGUERRE POLYNOMIALS
In this note we have shown the existence of more general generating relation from the existence of a partial quasi-bilinear generating relation by using group theoretic method. Some particular cases of interest are also...
CHARGE TRANSPORT IN SEMICONDUCTOR MATERIALS
The present paper highlights few of the problems encountered in the study of charge transport in semiconductor materials under an electric field. These problems are used in mathematical simulations for better describing...