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Influence Of Ultrasonic Treatment On The Anaerobic Digestion Of Sludge

Posted on:2012-11-16Degree:MasterType:Thesis
Country:ChinaCandidate:Y C ZhaoFull Text:PDF
GTID:2231330371495174Subject:Architecture and Civil Engineering
Abstract/Summary:PDF Full Text Request
This topic is Dalian DongTai XiaGuHe water treatment Co., LTD ultrasonic treatment sludge, based on experimental project by sludge, anaerobic digestion, ultrasonic and ultrasound treatment sludge on the influence of anaerobic digestion of the relevant mechanism of learning and understanding, combined with the field test, control and adjust pH value, quantity, temperature, access to change with mud vote rate, sludge retention time, ultrasonic treatment sludge parameters such as the time to observe sludge gas production, gas yield, methane content, organic decomposition rate, and other factors to draw some future application of valuable conclusions, which has great significance to the production.The main contents include:experiments of different sludge retention time of anaerobic digestion influence; Different temperatures of ultrasonic treatment sludge influence of anaerobic digestion; Vote for changes in the rate of with the influence of anaerobic digestion; Different break time on the influence of anaerobic digestion; Ultrasonic treatment sludge the moisture content of sludge several experimental parameters influence the; Ultrasonic treatment sludge experiments of sludge gas production effect, etc.According to the data of experiment can reach the following conclusion:find sludge retention time too long ventilation is lesser, when sludge residence time is shortened, single one-day increases, but also cannot gas production for the pursuit for greatly shorten the sludge retention time, to moderate good control of the sludge retention time, can promote anaerobic digestion; better more economy Temperature is high, the greater the volume when conditions permit conditions maximum increase the temperature is the guarantee anaerobic digestion of effective measures. From engineering economic perspective, blindly increase the temperature will greatly increase cost, so many uses temperature in engineering of anaerobic digestion. This experiment temperature control almost in37℃. belong to more economic. When the cast of the match rate of anaerobic digestion higher gas production, namely anaerobic digestion conditions will be better. Eradicate different situations to adopting appropriate shots match rate, can effectively promote the anaerobic digestion and complete.Sludge COD. sludge busting rate, temperature with ultrasonic factors such as processing time growth and increase, sludge pH value with ultrasonic treatment time does not exceed big changes; Join part after ultrasonic process after the sludge can make digestive cans of SS and sludge removal VSS decompose rate increases, organic raised and anaerobic digestion reaction:the more radical Joined by ultrasonic process after the sludge can obviously increase, gas production, and gas production after treatment with dosing the proportion of the sludge increases.
Keywords/Search Tags:Ultrasonic technology, Anaerobic digestion, Gas production, sludge
PDF Full Text Request
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