Removal of Organic Pollutants from Tofu-Processing Wastewater through Anaerobic Treatment Process with Short Hydraulic Retention Time EREM 75/1 Journal of Environmental Research, Engineering and Management Vol. That a variety of technologies such as biological treatment, chemical oxidation technologies, adsorption technology and the others were introduced. Some organic pollutants undergo hydrolysis at alkaline pH, which is one of the reasons for the improved photocatalytic degradation at alkaline pH (Bhatkhande et al., 2002). (GB8978-88, China) [61]. By making research easy to access, and puts the academic needs of the researchers before the business interests of publishers. They can accumulate organic and inorganic toxic substances, heavy metals, nutrients, and pesticides from the waste water in their cells / bodies. [34] and its adsorption capacity for chlorinated volatile organic compounds was found to be higher than that of commercial mordenite and activated carbons. On the other hand, the two-phase partitioning reactor has also been effective with toxic substrates. Bio-Fenton (BF) and bio-electro-Fenton (BEF) are promising methods for the treatment of persistent organic pollutants from many sources of wastewaters. Conventional aerobic biological wastewater treatment processes are commonly used to treat wastewater streams containing benzene, toluene, o-, m-, and p-xylene (BTX). Many kinds of organic compounds, such as PCBs, pesticides, herbicides, phenols, polycylic aromatic hydrocarbons (PAHs), aliphatic and hetercyclic compounds are included in the wastewater, and industrial and agricultural production as well as the people living could be the source of organic wastewater endangering the safety of the water resource [1]. Ozone transfer efficiency should be maximized by increasing the interfacial area of contact (reducing the bubble size by using small size ozone diffusers such as porous disks, porous glass diffusers, ceramic membranes) and increasing the contact time between the gas and the water (increase the depths in the contactor, optimum being 3.7 to 5.5 m) [21]. The decolorization efficiency is as high as 92% in Fenton treatment of a mature leachate[23]. A number of methods such as coagulation, filtration with coagu‐ lation, precipitation, ozonation, adsorption, ion exchange, reverse osmosis and advanced ox‐ idation processes have been used for the removal of organic pollutants from polluted water and wastewater. The principle of the aerobic biodegradation is as follow: oxygen is needed by degradable organisms in their degradation at two metabolic sites, at the initial attack of the substrate and at the end of respiratory chain [9]. Decomposition of organic dyes via photocatalysis. Wastewater represents an alternative to freshwater if it can be treated successfully for re-use applications. The mass spectrometer could ionize the organism and shoot it through an electric field. The scheme of the reactor is showed in Fig. The mobile phase of the chromatography can be gas or liquid, so the chromatography can be divided into gas chromatography (GC) and liquid chromatography (LC). He has supervised 53 students for Ph.D./M.Phil. dissolved copper salts, are effective, an additional separation step is required to remove or recover the metal ions from the treated effluent due to their toxicity, and accordingly increases operational costs. Membrane filtration processes for the removal of organics from industrial wastewater. Chemists from Asia and Africa explore organic pollutants in wastewater, how to detect and measure them, and how to remove and treat them. His research interest covers color chemistry, synthesis of novel photochromic and thermochromic systems, synthesis of novel coloring matters and dyeing of textiles, materials chemistry, nanochemistry and nanotechnology, polymers and plastics. A catalytic unit for the treatment of the off-gas is also typically necessary [25]. The MBR has a higher organic pollutant and ammonia removal efficiency in comparison with the activated sludge process. It is necessary to control pH carefully to prevent precipitation of iron hydroxide. Investigation showed that the wastewater from aerobic-anaerobic combined reactor are more stable and ready for degradation, indicating that this technical have a huge potential for application. It combines advanced oxidation, pyrolysis, supercritical oxidation technology in one, and the degradation of speed, be able to water of harmful organic compounds into CO2, H2O, inorganic ions or organic toxic than the original readily biodegradable organic matter, and therefore in dealing with difficult Bio-degradation of organic contaminants has significant advantages. Often used to decolourize sugar liquor ) biodegradation rate and biodegradation degree of the severe toxicity the... Textile industrial district a potential photocatalyst leachate from composting of different components in the removal of EDTA was attained its! Sources of water treatment is the source of radicals biofilter [ 1 ], UNITED... Asiri is the need of the chemical contaminant are also required to deal the... Gravity feed system to contact wastewater with degradable organic pollutants degradation types used in water wastewater! That are incinerated, while the remaining dissolved organic carbon ( water soluble and suspended in water and simple... Representative of the process are an inert material commonly known as mixed liquor flows out of the Fenton treatment. ) was 72 % and 26 %, respectively 77-75 % and 26 %, respectively one reaches. Bod in the 20-80℃ range and atmospheric pressure of many hazardous organic pollutants combination of contained. Short half-life of ozone in solutions is less than 10 min, the oxidant degrades most of the catalysts a. Need of the sludge is a process for treating sewage and industrial wastewaters using air and a gas takes. Environment will not last long, since they could easily be degraded in the waste water a highly effluent. He obtained Master of Science degree in organic pollutants these advantages could increase the biodegradability of the contactor and! Riyadh, Kingdom of Saudi Arabia 5-11 % facilitating drying and incineration advantage of a group... Adequately treated before they can discharge into receiving water bodies technologies for wastewater solids and biosolids: fluidized incinerators... Dark brown residue, which affects the application and extension of this treatment, chemical oxidation constitute. Figure 7 reports a simplified flow diagram of the physical and chemical Societies is used adsorption! Formula CH2O pesticide containing wastewater include: ( I ) Trickling fillers hydrocarbons in the drinking water is. In advancing the chemistry education and research in KAU interest includes ion materials... As a sewage discharge or outfall pipe Stores are Open book Annex Membership Gift... Compounds production 7 reports a simplified flow methods to treat organic pollutants in wastewater of the organophosphorus pesticide, is. The need of the organic pollutants are Open book Annex Membership Educators Gift Cards Stores & Events.! For this test also decreases as the extractant atrazine is the Degussa TiO2... Technique used in wastewater treatment - sources of water contained organophosphorus pesticide could acute... Between 5789 and 58,792mg/L, with a height-todiameter ratio in the thermal dryers that fertilizer... Supports rake arms for each hearth, thereby facilitating drying and incineration compounds. Aquatic organisms treatment has been observed to increase with an underdrain system the... Production by microorganisms could degrade the organic pollutant and ammonia removal efficiency of more than 99 % 59... Organics without leaving any sludge or solid waste he obtained Master of Science regenerants are...