July 01, 1999 in Social Responsibility News

SAMSUNG Corning Recycles Sludge Produced by Waster Water Disposal Plant

Samsung Corning recycles Sludge produced by waster water disposal plant as raw material for cement in cooperation with Ssang Yong Cement Co., LTD. & Dong Yang Cement Corporation. Using the properties of treated Sludge being similar to clay which is the raw material of cement, Samsung Corning carried out several tests in cooperation with Ssang Yong Cement Co., LTD. and Dong Yang Cement Corporation since last December. Sludge is used as the raw material for cement since April by Ssang Yong Cement Co., LTD. and since May by Dong Yang Cement Corporation.

Recycling rate of Sludge at Samsung corning is increased herewith up to over 85%, which was under 50% before. Samsung Corning cut down yearly 410 million won of expenses for Sludge waste treatment, and Ssang Yong Cement Co,. LTD.and Dong Yang Cement Corporation could save raw material cost.

The cost for treatment of 13,000 tons of sludge ran into 900 million won every year in Suwon and Gumi Samsung Corning plants. Samsung Corning has exerted all possible efforts to reduce and to recycle Sludge for the sake of protection of environment and the retrenchment of expenditure.

LAB test and procedure test were completed in February after basic analysis such like ingredient analysis and functional rate in order to use Sludge as raw material. Ssang Yong Cement Co,. LTD. uses 600 tons of Sludge as raw material monthly since the first of April, and Dong Yang Cement Corporation uses 500 tons of Sludge since the first of May.

This shows a model case for protection of environment and recycling of waste, that was obtained by cooperation of major companies for recycling.

It is expected that further proliferation of Sludge recycling would be very effective for protection of environment, as this recycling technology could be applied not only to Samsung Corning, but also the the other glass manufacturing companies.


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