شماره ركورد كنفرانس :
4766
عنوان مقاله :
Combined use of biocides and MBBR reactors to reduce biofouling in membrane surfaces used in membrane processes
پديدآورندگان :
Noori Hamed hnip.iau.ac@gmail.com Department of Chemical Engineering, Islamic Azad University, Central Tehran, Iran; , Akhondi Ebrahim Faculty of Chemical Engineering, Islamic Azad University, Central Tehran, Iran , Sakhaeinia Hossein Faculty of Chemical Engineering, Islamic Azad University, Central Tehran, Iran
كليدواژه :
Biocides , Biofouling , MBBR , Membrane processes
عنوان كنفرانس :
اولين كنفرانس ملي فرآيندهاي پالايش آب، هوا و خاك
چكيده فارسي :
The use of membrane, despite the diverse and cost-effective applications, is always faced with one of its fundamental problems, ie, the issues of fouling and biofuling, which in many cases create major problems in various industries. Fouling in membrane processes is generally caused by two types of scaling mineral compounds and biological fouling that First type are controlled to a large extent by appropriate strategies for pre-treatment and during operations, most of which are the use of anti-scalants but Biological fouling have their own specific complexities. The mechanism of the formation and expansion of this phenomenon is the accumulation and unwanted accumulation and expansion of organic compounds and microorganisms with the formation of the biofilm layer. Biofilms originate primarily from microbial cells and microbial Extracellular Polymeric Substances (EPS) that are metabolised by bacterial cell surface membrane that, due to the presence of porosity in the germs, is a suitable substrate for the development and production of high molecular weight complexes from polymers excreted by microorganisms. In this research, which is described descriptive analytical research, using the (BIOCIDE) fragmentary structures of the compounds in the feed water sample is broken down and using MBBR reactor, appropriate placement is provided prior to entering these compounds into the membranes and growing microorganisms at the PAKING MEDIA surfaces. The microorganisms developed inside the reactor grow and consume organics as their food with the help of the aerobic and anaerobic pretreatment process and prevent the introduction of these organic materials in the membrane surface. This will increase the life span of the membranes, reduce operating costs, and increase the productivity of various membrane processes.