Combined effect of sodium dodecyl sulfate and enzyme on waste activated sludge hydrolysis and acidification. 2011

Kun Luo, and Qi Yang, and Jing Yu, and Xiao-ming Li, and Guo-jing Yang, and Bing-xin Xie, and Fan Yang, and Wei Zheng, and Guang-ming Zeng
College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China.

The combined effect of sodium dodecyl sulfate (SDS) and enzyme system on hydrolysis and acidification of waste activated sludge (WAS) was investigated. The results showed that the combined system was more effective in the promotion of sludge hydrolysis than sole SDS and sole enzyme, and the SDS+mixed-enzymes (ME) system had better hydrolysis performance than SDS+single enzyme system. Compared with SDS+protease and SDS+amylase systems, the soluble protein concentration in SDS+ME system increased respectively by 20.0% and 44.4%, and the soluble carbohydrate concentration increased by 78.3% and 37.0%, respectively. During the WAS acidification stage, the SDS, ME and SDS+ME system could make the maximum short-chain fatty acids (SCFAs) concentration increased by 1.82 (6th day), 2.04 (5th day), 2.32 (7th day) times, respectively. The composition analysis of SCFAs produced in SDS+ME system indicated that acetic acid was the most prevalent product and propionic acid was the second one.

UI MeSH Term Description Entries
D009584 Nitrogen An element with the atomic symbol N, atomic number 7, and atomic weight [14.00643; 14.00728]. Nitrogen exists as a diatomic gas and makes up about 78% of the earth's atmosphere by volume. It is a constituent of proteins and nucleic acids and found in all living cells.
D010447 Peptide Hydrolases Hydrolases that specifically cleave the peptide bonds found in PROTEINS and PEPTIDES. Examples of sub-subclasses for this group include EXOPEPTIDASES and ENDOPEPTIDASES. Peptidase,Peptidases,Peptide Hydrolase,Protease,Proteases,Proteinase,Proteinases,Proteolytic Enzyme,Proteolytic Enzymes,Esteroproteases,Enzyme, Proteolytic,Hydrolase, Peptide
D012037 Refuse Disposal The discarding or destroying of garbage, sewage, or other waste matter or its transformation into something useful or innocuous. Waste Disposal, Solid,Disposal, Refuse,Disposal, Solid Waste,Disposals, Refuse,Disposals, Solid Waste,Refuse Disposals,Solid Waste Disposal,Solid Waste Disposals,Waste Disposals, Solid
D002241 Carbohydrates A class of organic compounds composed of carbon, hydrogen, and oxygen in a ratio of Cn(H2O)n. The largest class of organic compounds, including STARCH; GLYCOGEN; CELLULOSE; POLYSACCHARIDES; and simple MONOSACCHARIDES. Carbohydrate
D005227 Fatty Acids Organic, monobasic acids derived from hydrocarbons by the equivalent of oxidation of a methyl group to an alcohol, aldehyde, and then acid. Fatty acids are saturated and unsaturated (FATTY ACIDS, UNSATURATED). (Grant & Hackh's Chemical Dictionary, 5th ed) Aliphatic Acid,Esterified Fatty Acid,Fatty Acid,Fatty Acids, Esterified,Fatty Acids, Saturated,Saturated Fatty Acid,Aliphatic Acids,Acid, Aliphatic,Acid, Esterified Fatty,Acid, Saturated Fatty,Esterified Fatty Acids,Fatty Acid, Esterified,Fatty Acid, Saturated,Saturated Fatty Acids
D006868 Hydrolysis The process of cleaving a chemical compound by the addition of a molecule of water.
D000143 Acids Chemical compounds which yield hydrogen ions or protons when dissolved in water, whose hydrogen can be replaced by metals or basic radicals, or which react with bases to form salts and water (neutralization). An extension of the term includes substances dissolved in media other than water. (Grant & Hackh's Chemical Dictionary, 5th ed) Acid
D000516 alpha-Amylases Enzymes that catalyze the endohydrolysis of 1,4-alpha-glycosidic linkages in STARCH; GLYCOGEN; and related POLYSACCHARIDES and OLIGOSACCHARIDES containing 3 or more 1,4-alpha-linked D-glucose units. Taka-Amylase A,alpha-Amylase,Alpha-Amylase Bayer,Maxilase,Mégamylase,alpha-1,4-D-Glucanglucanohydrolase,Alpha Amylase Bayer,AlphaAmylase Bayer,Taka Amylase A,TakaAmylase A,alpha 1,4 D Glucanglucanohydrolase,alpha Amylase,alpha Amylases
D000644 Quaternary Ammonium Compounds Derivatives of ammonium compounds, NH4+ Y-, in which all four of the hydrogens bonded to nitrogen have been replaced with hydrocarbyl groups. These are distinguished from IMINES which are RN Quaternary Ammonium Compound,Ammonium Compound, Quaternary,Ammonium Compounds, Quaternary,Compound, Quaternary Ammonium
D000704 Analysis of Variance A statistical technique that isolates and assesses the contributions of categorical independent variables to variation in the mean of a continuous dependent variable. ANOVA,Analysis, Variance,Variance Analysis,Analyses, Variance,Variance Analyses

Related Publications

Kun Luo, and Qi Yang, and Jing Yu, and Xiao-ming Li, and Guo-jing Yang, and Bing-xin Xie, and Fan Yang, and Wei Zheng, and Guang-ming Zeng
February 2007, Water research,
Kun Luo, and Qi Yang, and Jing Yu, and Xiao-ming Li, and Guo-jing Yang, and Bing-xin Xie, and Fan Yang, and Wei Zheng, and Guang-ming Zeng
October 2016, Journal of environmental sciences (China),
Kun Luo, and Qi Yang, and Jing Yu, and Xiao-ming Li, and Guo-jing Yang, and Bing-xin Xie, and Fan Yang, and Wei Zheng, and Guang-ming Zeng
March 2014, Huan jing ke xue= Huanjing kexue,
Kun Luo, and Qi Yang, and Jing Yu, and Xiao-ming Li, and Guo-jing Yang, and Bing-xin Xie, and Fan Yang, and Wei Zheng, and Guang-ming Zeng
October 1985, Journal of pharmaceutical sciences,
Kun Luo, and Qi Yang, and Jing Yu, and Xiao-ming Li, and Guo-jing Yang, and Bing-xin Xie, and Fan Yang, and Wei Zheng, and Guang-ming Zeng
May 2013, Bioresource technology,
Kun Luo, and Qi Yang, and Jing Yu, and Xiao-ming Li, and Guo-jing Yang, and Bing-xin Xie, and Fan Yang, and Wei Zheng, and Guang-ming Zeng
December 2019, Bioresource technology,
Kun Luo, and Qi Yang, and Jing Yu, and Xiao-ming Li, and Guo-jing Yang, and Bing-xin Xie, and Fan Yang, and Wei Zheng, and Guang-ming Zeng
December 2008, Water environment research : a research publication of the Water Environment Federation,
Kun Luo, and Qi Yang, and Jing Yu, and Xiao-ming Li, and Guo-jing Yang, and Bing-xin Xie, and Fan Yang, and Wei Zheng, and Guang-ming Zeng
June 2015, Environmental science and pollution research international,
Kun Luo, and Qi Yang, and Jing Yu, and Xiao-ming Li, and Guo-jing Yang, and Bing-xin Xie, and Fan Yang, and Wei Zheng, and Guang-ming Zeng
January 1979, Biofizika,
Kun Luo, and Qi Yang, and Jing Yu, and Xiao-ming Li, and Guo-jing Yang, and Bing-xin Xie, and Fan Yang, and Wei Zheng, and Guang-ming Zeng
December 2019, Journal of environmental management,
Copied contents to your clipboard!