Effect of solar light on the decrease of microbial contamination in facultative stabilization pond
Journal Title: Journal of Advances in Environmental Health Research (JAEHR) - Year 2018, Vol 6, Issue 2
Abstract
One of the indexes of stabilization pond is the presence of coliform bacteria in water and wastewater. This study aimed to determine the effect of solar light on coliform variations in stabilization pond. In this experimental study, the effect of light, pH (<7, 7.1–8, 8.1–9), and temperature (10 ºC and 30 ºC) on facultative stabilization pond was studied for six months. The sampling was accomplished weekly. Coliform colonies were measured using the nine tube fermentation method. The coliform deterioration constant was calculated using the Maraise model. The data were analyzed using SPSS version 20. The effect of light on coliform deterioration constant was negative. Also, low pH increased the coliform death. No significant statistical difference was seen at 10 ºC and 30 ºC (P < 0.05). Low temperature cannot be adherence for facultative stabilization pond. Regarding the positive effect of temperature on the coliform death, use of facultative stabilization pond in a warm climate is suggested.
Authors and Affiliations
Ali Almasi, Mitra Mohammadi, Rohallah Shokri, Majid Hashemi, Nemat Bahmani
Keywords
Related Articles
- EP ID EP425726
- DOI 10.22102/jaehr.2018.104707.1047
- Views 133
- Downloads 0
Preparation of magnetic chitosan/Fe-Zr nanoparticles for the removal of heavy metals from aqueous solution
Copper and hexavalent chromium are heavy metals that are harmful to human health. Natural adsorbent chitosan, due to its considerable properties such as the presence of functional groups of –NH2 and -OH, non-toxicity, lo...
Spatial distribution of fluoride in groundwater resources in selected parts of Kurdistan Province, Iran, using the geographical information system
Fluoride in drinking water has a profound effect on teeth. Since drinking water is an important source of fluoride, the evaluation of the fluoride content of water resources is necessary. Temporal variations and spatial...
A survey on the knowledge and attitudes of Dehloran health network personnel about food safety and health
Controlling and ensuring the safety of food plays an important role in preventing foodborne illness. The major objective of this descriptive cross-sectional study was determined the food safety knowledge and attitudes of...
Chromium bioremediation by Alcaligenes sp. strain newly isolated from chromite mine of Sabzevar
In this work, CKCr-6A strain was found to be highly resistant to some toxic heavy metals such as Cr+6, Cr+3, Cu+2, Co+2, Cd+2, Pb+2, Hg+2, U+6, tellurium, and selenite. Herein, high chromate tolerance of an isolated stra...
Profit estimation models of industrial and engineering brick manufacturing using UASB reactor sludge
According to a recent report by the Iranian industrial organization, over 1700 Industrial and Engineering Brick Manufacturing (IEBM) industries are currently running in Iran, using the same method in common use worldwide...