Flocculation-precipitation treatment method and equipment for waste paper deinking waste water

• Main Authors: JIUZHONG CHEN, JINQUAN WAN, ZHONGHAO CHEN
• Format: Patent
• Language: English
• Published: 21.02.2001
• Edition: 7
• Subjects: APPARATUS THEREFOR; CHEMISTRY; METALLURGY; PAPER-MAKING; PRODUCTION OF CELLULOSE; PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCESFROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; TEXTILES; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

An intermittent or continuous flocculation-precipitation process for treating waste decolouring water generated during making pulp with used paper features use of aluminium sulfate (Al2(SO4)3) and poly aluminium chloride £Al2(OH)mCl6-m|n as flocculant. Its purifier designed specially is composed of...