Entity

Time filter

Source Type


Li L.-Y.,Wuhan Kaidi General Research Institute | Li W.-L.,China Light Industry Wuhan Design Engineering Co.
Chung-kuo Tsao Chih/China Pulp and Paper | Year: 2012

This paper summarized the chemi-mechanical pulp production lines introduced into China and expounded the development of chemi-mechanical pulp. The application requirements and the characteristics of the current chemi-mechanical pulp are discussed. Source


Wang X.-C.,China Light Industry Wuhan Design Engineering Co. | Guo X.-W.,China Light Industry Wuhan Design Engineering Co.
Chung-kuo Tsao Chih/China Pulp and Paper | Year: 2014

In this paper, the basic methods of paper mill sludge conditioning, dewatering and drying were systematic introduced, and focused on the sludge drying technology and its application cases. Sludge dewatering and drying is the precondition of recycling disposal. Choosing reasonable conditioning, dewatering and drying methods, the moisture content of sludge and sludge volume can be reduced, which not only reduces the impact of paper sludge on environment, but also saves a lot of energy for paper companies, and even realizes resource utilization. Source


Zhan W.,Huazhong University of Science and Technology | Wang X.,Huazhong University of Science and Technology | Wang X.,China Light Industry Wuhan Design Engineering Co. | Li D.,Huazhong University of Science and Technology | And 4 more authors.
Water Science and Technology | Year: 2013

In this study, we investigated the pretreatment of a high concentration pharmaceutical wastewater by catalytic wet air oxidation (CWAO) process. Different experiments were conducted to investigate the effects of the catalyst type, operating temperature, initial system pH, and oxygen partial pressure on the oxidation of the wastewater. Results show that the catalysts prepared by the co-precipitation method have better catalytic activity compared to others. Chemical oxygen demand (COD) conversion increased with the increase in temperature from 160 to 220°C and decreased with the increase in pH. Moreover, the effect of the oxygen partial pressure on the COD conversion was significant only during the first 20 min of the reaction. Furthermore, the biodegradability of the wastewater improved greatly after CWAO, the ratio of BOD5/COD increased less than 0.1-0.75 when treated at 220°C (BOD: biochemical oxygen demand). © IWA Publishing 2013. Source


Li X.-M.,China Light Industry Wuhan Design Engineering Co. | He J.,China Light Industry Wuhan Design Engineering Co. | Yang N.-S.,China Light Industry Wuhan Design Engineering Co.
Chung-kuo Tsao Chih/China Pulp and Paper | Year: 2015

The paper introduced the process design of vacuum system of the paper machine which was designed by China Light Industry Wuhan Design Engineering Co., Ltd., the paper machine's width was 5600 mm, the speed was 800 m/min. The paper was discussed the calculation and distribution of vacuum capacity of the dewatering; the DCS control principle of the vacuum flow; the design of the vacuum silencer; and the design of the recycling of the water used for vacuum pumps. ©, 2015, China Technical Association of Paper Industry. All right reserved. Source


Wang X.-C.,China Light Industry Wuhan Design Engineering Co. | Guo X.-W.,China Light Industry Wuhan Design Engineering Co. | Hu W.-F.,China Light Industry Wuhan Design Engineering Co. | Wu L.,China Light Industry Wuhan Design Engineering Co.
Chung-kuo Tsao Chih/China Pulp and Paper | Year: 2012

The pulping and papermaking wastewater treated by anaerobic and aerobic processes was further treated by advanced treatment with the process of flocculation-Fenton oxidation-astrasand process. The construction, equipments and operation parameters of the process were introduced in this paper. The benefits and characteristics of this engineering were also analyzed and summarized. Using this process the effluent quality can meet the discharge standard of water pollutants for pulp and paper industry (GB3544-2008). Source

Discover hidden collaborations