................................................................................................................................ ii TABLES .................................................................................................................................... vii ACKNOWLEDGEMENTS ...................................................................................................... v...

Anaerobic filters (AFs) and upflow anaerobic sludge blanket (UASB) reactors are finding wide-scale acceptance for treating various types of wastewater. They are frequently used for medium to high strength wastewater (2,000 to 20,000 mg/L COD), but have fewer applications to low strength wastewater (< 1,000 mg/L COD). In order to understand the applicability of anaerobic treatment for low streng...

The use of low-cost, locally available, highly efficiencient and eco-friendly adsorbents has been investigated as an ideal alternative to the current expensive methods of removing dyes from wastewater. This study investigates the potential use of activated carbon prepared from the Annona squmosa seed for the removal of methyl red (MR) dye from simulated wastewater. The effects of different syst...

introduction: treatment of wastewater due to product and consumption of material cleaning with special physicochemical characteristics is difficult, and therefore can cause significant environmental problems such as eutrification, toxicity, algae bloom and etc.to stop these consequences, assessing the quality characteristics of this wastewaters is necessary. to investigate about the appropriate...

As one of the artificial recharge technologies, soil–aquifer treatment (SAT) system is used for removal nitrogen pollution from aquaculture wastewater. An adsorption-enhanced SAT was designed to reduce level below threshold stipulated by standards. Adsorption kinetics experiments were measure adsorption capacity zeolite and activated carbon ammonia nitrogen. Both adsorbents can be well describe...

The development of a comprehensive approach to preventing the pollution natural objects is necessary due high requirements environmental legislation for discharge industrial wastewater. Adsorbents are used in various industries extract heavy metals from In this study possibility using saponite clay as raw material production sorbent extraction copper ions Cu2+ wastewater considered, recipe and ...

Sugar Factory effluent is one of the most important moderate – high pollution concentration wastewater, which is generated mainly from the mill house washing activities of the sugar factory. The effluent is rich in organic matter resultant from the sugarcane juice, sugar syrup and sugar present in the washwater. The COD of this effluent is variable from 5000 – 10000 mg/L. The aim of the present...

Nitrates pollution of waters is a worldwide problem and its remediation is a big challenge from the technical and the scientific point of view. One of the most used and promising cleaning techniques is the biological treatment of wastewaters operated by denitrifying bacteria. In this paper we begin a thorough study of denitrifying performances of the bacterium Azospira sp. OGA 24, recently isol...

In recent years, there has been significant interest in yeast-based wastewater treatment due to its high pollutant removal rate and ability perform non-sterile environments. this work, a kinetic model was developed predict yeast growth substrate consumption during treatment. To determine the biological constants for use models, unique approach is presented. Candida utilis cultivated synthetic w...

background: chromium (cr) is the most important element used to plate other metals and electroplating factories are still consid­ered to be the most important industries which pollute the environment to this metal. this paper describes a study con­ducted to determine the efficiency of reverse-osmosis (ro) as a membrane technique for removal of cr from wastewater sam­ples synthetically prepared ...