The Gao Sen Pulp and Paper Mill, Gao Sen City, Anhui Province
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Background
Gao Sen pulp and paper mill is located along the Yangtze river in Gao Sen city, Anhui province. The mill is a state owned enterprise which was established in 1958. It presently (early 2001) has a workforce of 950 workers, including 180 persons having a technical background. Its annual production capacity is of 20 000 tons. The mill presently operates three paper machines producing respectively white cigarette paper, yellow cigarette tipping paper and insulation paper. It should be noted that the unit producing insulation paper is operated under a Japanese joint venture (Anhui Mikitoku Paper Company Limited). The raw materials used for cigarette and tipping paper production consist of seventy percent purchased wood pulp and thirty percent purchased straw pulp while purchased unbleached wood pulp is used for the production of insulation paper. The fresh water used by the mill is taken from the Gao He river. The total yearly production of the mill is of 10 200 tons (5100 tons/year for cigarette and tipping papers and 5100 tons for insulation paper). The mill sells its products to customers based all over China and exports to Japan, Hong Kong, and South-East Asia.
The following information about the mill's Cleaner Production activities is drawn from the March 2001 evaluation - Assessment of the CP Solutions in the Pulp and Paper Sector, April 2001. More details about these solutions are available in the full assessment document, which is available in downloadable format. The factory receives assistance in implementing cleaner production from the China-Canada Cooperation Project on Cleaner Production.
Wastewater Treatment
The mill is not equipped with a conventional wastewater treatment plant. White water generated by both cigarette paper machines is combined. The combined white water is directed to a screening system followed by a flotation system. The treated effluent from the flotation system is then directed to a final screening system before being discharged to the Gao He river. A quantity of three tons per month is recovered and is sold to external companies manufacturing cardboard.
The treated effluent is monitored for COD, SS, and pH every three months by local the Environmental Protection Bureau (EPB) since the mill does not possess its own environmental monitoring laboratory. The environmental results from the EPB are not available at the mill.
Cleaner Production Solutions
So far, nine CP solutions have been implemented at the mill. Out of these nine CP solutions, four are low cost, two are medium cost, and three are high cost solutions. The Gao Sen mill has identified solutions which are mainly process oriented and not management system based.
|
CP Solution Number |
CP Solution |
Category of Solution |
|
1 |
White water recycling |
Low cost |
|
2 |
Modification of sand removal system |
Low cost |
|
3 |
Steam pipe insulation |
Low cost |
|
4 |
Pulp consistency control |
Low cost |
|
5 |
Steam pressure control |
Medium cost |
|
6 |
Modification of the coal feeder system |
Medium cost |
|
7 |
Idled straw pulping |
High cost |
|
8 |
Development of high benefit products |
High cost |
|
9 |
White water recovery |
High cost |
 |
The installation of more efficient sand removal systems at the inlet of each paper machine allowed the mill to enhance the quality of its finished products. (CP Solution #2) |
The factory can be contacted by email at gaosen@cntmi.com
Contact Name: Mr.
He Jiafu (General Manager)
Address: Gao Sen (Anqing), Anhui
Telephone : 0556-4616898
Fax : 0556-4617888
E-mail : gaosen@cntmi.com
ŠNDRC 2000-2006