%0 Journal Article
%T Oil and Grease Removal from Industrial Wastewater Using New Utility Approach
%A H. S. Abd El-Gawad
%J Advances in Environmental Chemistry
%D 2014
%R 10.1155/2014/916878
%X The present study is an attempt to investigate oil and grease pollution that may pollute fresh water and influence aquatic environment. Then removal of oil and grease from manufacturing wastewater befall essential but common techniques not enough. Enzyme and adsorption units representing major developed new laboratory were selected to assess the water quality and humiliation prospective of oil and grease from wastewater. Several components and environmental variables that were dissolved oxygen, bacteriology measure, flow rate and adsorption material amount studied to assess the removal performance of oil and grease. The results elucidated significant variations among different tests which influenced microbial necessary role of oxidation declining develop biological treatment process reached to 72%. The study stressed out natural material (zeolite) that enhanced organic reduction under optimal conditions. These conditions were closer spacing and high length of adsorbing unit that led to increase oil and grease contact period with adsorbent and added to increase performance removal reached to 99%. 1. Introduction Organic toxic waste (oil and grease (O&G)) causes ecology damages for aquatic organisms [1], plant, animal, and equally, mutagenic and carcinogenic for human being [2]. They discharge from different sources to form a layer on water surface that decreases dissolved oxygen. O&G layer reduces biological activity of treatment process where oil film formation around microbes in suspended matter and water. This lead to decrease dissolved oxygen levels in the water. Then oxygen molecules are difficulty to be oxidative for microbial on hydrocarbon molecules and cause ecology damages to water bodies [3, 4]. The conventional techniques remove oil and grease using skimming tanks and oil and grease traps in treatment plants but the main disadvantage of these methods is their low efficiency of removal. The remaining oil causes clogging of pipes in treatment units that need cleaning and sometimes replacement of pipes. This lead to increase maintenance and inspection cost [5]. Recently, alternative uses of biochemical route (enzymes and lipases) have potentially gained more attention due to their clean and friendly application and to overcome limitation [6]. Microbial activity plays significant role in performance, strength purification process, and elimination of pretreatment process in wastewater treatment plant depending on enzyme costs [7]. Environmental studies described prevention of fat blockage or filming in waste systems before discharging wastewater
%U http://www.hindawi.com/journals/aec/2014/916878/