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Tao F.,Hangzhou Liqun Environment Protecting Paper Co.
Zhongguo Zaozhi Xuebao/Transactions of China Pulp and Paper | Year: 2013

Compared with the rolling process and slurrying process, the papermaking process provides the reconstituted tobacco with good filling performance and low releasing tar. The research results of reconstituted tobacco in last five years were reviewed in the paper. The research progress in processing technologies, aroma components, biochemical treatment and functionality, as well as decreasing tar and redecing harm of reconstituted tobacco were presented. And also the gap between the foreign and the domestic products' qualities was analyzed. Finaly the future application and development of the reconstituted tobacco were prospected. Source

Ma X.,Zhejiang GongShang University | Gao Y.,Zhejiang GongShang University | Gao Y.,Tsinghua University | Huang H.,Hangzhou Liqun Environment Protecting Paper Co.
Water Science and Technology | Year: 2015

Attempts were made in this study to examine the efficiency of electrocoagulation (EC) using aluminum (Al) anode and stainless steel net cathode combined with electrochemical oxidation with a β-PbO2 anode or a mixed metal oxide (MMO) anode for treatment of papermaking tobacco sheet wastewater, which has the characteristics of high content of suspended solids (SS), intensive color, and low biodegradability. The wastewater was first subjected to the EC process under 40 mA/cm2 of current density, 2.5 g/L of NaCl, and maintaining the original pH of wastewater. After 6 minutes of EC process, the effluent was further treated by electrochemical oxidation. The results revealed that the removal of SS during the EC process was very beneficial to mass transfer of organics during electrochemical oxidation. After the combined process, 83.9% and 82.8% of chemical oxygen demand (COD) removal could be achieved on the β-PbO2 and MMO anodes, respectively. The main components of the final effluent were biodegradable organic acids, such as acetic acid, propionic acid, butyric acid, valeric acid, and hexahyl carbonic acid; the 5-day biochemical oxygen demand/chemical oxygen demand (BOD5/COD) ratio increased from 0.06 to 0.85 (Al + β-PbO2) or 0.80 (Al + MMO). Therefore, this integrated process is a promising alternative for pretreatment of papermaking tobacco sheet wastewater prior to biological treatment. © IWA Publishing 2015. Source

Ma X.,Zhejiang GongShang University | Gao Y.,Zhejiang GongShang University | Gao Y.,Tsinghua University | Cui Y.,Zhejiang GongShang University | And 2 more authors.
Desalination and Water Treatment | Year: 2015

β-PbO2 electrode modified with fluorine resin and Ti/TiO2-RuO2-IrO2 electrode exhibited excellent performance in electrochemical treatment of papermaking tobacco sheet wastewater. Most of the organic pollutants and suspended solids could be effectively removed from wastewater under optimized conditions and the main recalcitrant components were converted to biodegradable intermediates. The BOD5/COD ratio of wastewater increased from 0.06 to 0.50 (on β-PbO2) or 0.47 (on Ti/TiO2-RuO2-IrO2), indicating that the effluent was more apt to biological treatment. Therefore, electrochemical oxidation could be employed as a promising pretreatment method for wastewater treatment of papermaking tobacco sheet manufacturers. © 2015 Balaban Desalination Publications. All rights reserved. Source

Zhong W.,Zhejiang University of Technology | Zhu C.,Zhejiang University of Technology | Shu M.,China Tobacco Zhejiang Industrial Co. | Sun K.,Zhejiang University of Technology | And 4 more authors.
Bioresource Technology | Year: 2010

The newly isolated Pseudomonas sp. ZUTSKD was evaluated for its ability to degrade nicotine in tobacco waste extract (TWE). The strain degraded nicotine completely when the concentration of reducing sugar in TWE was lower than 8 g L-1. Yeast extract and phosphate additions improved nicotine degradation in 5% TWE. At 30 oC and pH 7.0, with additional 15 g L-1 Na2HPO4.6H2O and 6 g L-1 KH2PO4 in 5% TWE, Pseudomonas sp. ZUTSKD could degrade 97% of nicotine (1.6 g L-1) in 12 h. The data showed that strain ZUTSKD could be useful to control the nicotine content in TWE. © 2010 Elsevier Ltd. All rights reserved. Source

Liu H.,Zhejiang University of Technology | He H.,Zhejiang University of Technology | Cheng C.,China Tobacco Zhejiang Industrial Co. | Liu J.,China Tobacco Zhejiang Industrial Co. | And 5 more authors.
Applied Microbiology and Biotechnology | Year: 2014

Reconstituted tobacco sheet process has been developed to treat and reuse tobacco wastes in the industry. During this process, microorganisms in original and concentrated tobacco waste extract (TWE) might play important roles in the final quality of the reconstituted tobacco. However, microbial communities in TWE remain largely unknown. In the present study, the Roche 454 bar-coded pyrosequencing was applied to analyze the bacterial community structure in samples. Comparison based on 16S rRNA gene sequences showed that the original and concentrated solutions of TWE harbored abundant bacteria probably resistant to the acid, high nicotine concentration, and high osmotic pressure environment. The dominant phyla were Firmicutes and Proteobacteria. Lactobacillus and Lysinibacillus were the dominant genera of Firmicutes. The most interesting genus of Proteobacteria was Pseudomonas. It is the first time to reveal the bacterial diversities on the TWE samples from the process of reconstituted tobacco sheets. © 2014 Springer-Verlag Berlin Heidelberg. Source

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