Abstract
In this work, a modified internal loop airlift reactor has been designed to remove the organic pollutants in synthetic wastewater at an efficient and inexpensive treatment technique by means of a synergistic effect combining of (oxidation, stripping and adsorption). The validation of the current style was experimentally examined in the treatment of synthetic Wastewater contained chloroform. The experimental testing rig was implemented at various air flow rates range (5-20) (L/min), with total variable residence period (5-60 min) with a different molar ratio of CHCl3 to H2O2 i.e. 1:10, 1:15 and 1:20. The results showed that the best molar ratio of chloroform to hydrogen peroxide was 1:20 for the air flow rate 18 L/min and extended retention period (60 min) having the uppermost results (83.3%) to remove chloroform from the contaminated effluent water. This design complements the research objectives with high efficiency through the synergy of stripping, oxidation and adsorption processes to remove contaminated chloroform from wastewater. This work contributes to a part of the solution of the environmental problems of the contaminated water before recycling, reuse or released to our safe environment.
Highlights
One of the main objectives of the industrial wastewater is to remove or reduce concentrations of the remaining organic pollutants in wastewater to the extent permitted by national and international organizations
The idea of using one device like the airlift loop reactor to conduct stripping, oxidation and adsorption operations were carried out using various operating conditions and study the performance of the operating system via the treatment and removal of one chemical pollutant form drinking water
Experimental procedure The preparatory sample of contaminated synthetic water contains a concentration of 150 ppm of contaminated organic chloroform. 1000 mL of hydrogen peroxide was added as an oxidized factor to 4 liters of water in the feed container at 25°C due to make the molar ratio for chloroform to hydrogen peroxide equal to 1/20
Summary
One of the main objectives of the industrial wastewater is to remove or reduce concentrations of the remaining organic pollutants in wastewater to the extent permitted by national and international organizations. The system is subjected to testing by treating one of the most widespread organic pollutants chloroform, to determine the ability and practical efficiency of the synergistic system of the processes of stripping, oxidation, and adsorption of dissolved organic matter dissolved in drinking water. The introduction of bacteria through biological treatment via the packed bed reactor, while the contaminated water pass through packed media may cause many problems, such as clogging the bed and making channeling via bypassing flow, leading to an ineffective handling process [11, 12]. A modern system of synergistic mutually reinforcing operations of (oxidation , stripping, and adsorption) is implemented to destroy the chloroform pollutants from wastewater. The purpose of this research was to fruition the feasibility o f employing a new styling of a synergistic incorporate system of (oxidation, stripping, and adsorption) for the removal of Chloroform from wastewater
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