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El-Sayed A. Abdel-Aal
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Cairo, EG
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Patent Grant
Treatment of spent pulping liquor with lignin separation to recover...
Patent number
6,830,696
Issue date
Dec 14, 2004
University of Florida Research Foundation, Inc.
Hassan E. El-Shall
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE