Development of biodegradability indicators for microwave sludge conditioning
نویسندگان
چکیده
منابع مشابه
Effect of Combined Microwave-Ultrasonic Pretreatment on Anaerobic Biodegradability of Primary, Excess Activated and Mixed Sludge
This work deals with the effect of combined microwave-ultrasonic pretreatment on the anaerobic biodegradability of primary, excess activated and mixed sludge. The characteristics, biodegradability and anaerobic digester performance for untreated primary, excess activated and mixed sludge were compared to combined microwave-ultrasonic pretreated primary, excess activated and mixed sludge. All sl...
متن کاملComparison of Drying Characteristic and Biodegradability of Dairy Sludge Using Microwave and Infrared Drying
In our work we focused on the investigation of two intensive drying methods, i.e. infrared (IR) and microwave (MW) drying, for dairy sludge. During the experiments the effects of IR and MW drying with different power intensities on drying characteristic and biodegradability were examined. Our results has revealed that MW drying was more advantageous for dairy sludge, because the drying time nee...
متن کاملBiodegradability of [14C]methylcellulose by activated sludge.
Three Methocel methylcellulose ethers of 1.9 degree of substitution with [14C]methyl labels were shown to be biodegradable using batch-type activated sludge tests. The maximum rate for conversion to 14CO2, attained after 1 week, was only 0.62 mg of methylcellulose/g of mixed liquor volatile solids per day. In 20 days, 55 to 73% of the radioactivity had been removed from solution as 14CO2, and t...
متن کاملThe effect of operational conditions on the sludge specific methanogenic activity and sludge biodegradability.
The effects of hydraulic retention time (HRT) and influent COD concentration (CODInf) on Specific Methanogenic Activity (SMA) and the biodegradability of an anaerobic sludge need to be elucidated because of the discordant results available in literature. This information is important for the operation of anaerobic reactors and design of the sludge post-treatment unit. For this study, sludge sam...
متن کاملConditioning Process of Fresh Activated Sludge
The effect of polyelectrolytes; cationic and anionic charges and coagulants have been investigated for fresh activated sludge at different concentrations and pH values in a comparative fashion. The results from the experiments indicate that the cationic polyelectrolytes have a significant effluence on the sludge characteristic, degree of flocculation and water quality such as turbidity and SVI....
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ژورنال
عنوان ژورنال: Hungarian Agricultural Engineering
سال: 2015
ISSN: 0864-7410,2415-9751
DOI: 10.17676/hae.2015.27.42