TREATMENT OF FILTHY WATER
申请(专利)号： JP19800129585
专利号： JPS5753290A 主分类号： C02F3/00
申请权利人： NISHIHARA
KANKIYOU EISEI KENKYUSHO:KK 公开国代码： JP 优先权国家： JP
摘 要：
PURPOSE:To perform nitrification concurrently with BOD-removal and to shorten a period required for water purification, by adding a CO2 source to filthy water before the BOD-removing reaction. CONSTITUTION:An inorganic carbonate, e.g. sodium carbonate or calcium carbonate, and a CO2 source, e.g. combustion exhaust gas from a boiler, are added to inflow filthy water, and the filthy water is subjected to BOD-removing reaction, whereby nitrification is promoted concurrently with the intrinsic BOD-removing reation. Consequently, a BOD-source and nitrate nitrogen coexist in the system, so that denitrification is promoted at a partial anaerobic site, too. As a result, the BOD-removing reaction is accelerated. After the reaction, solid matters are separated from the liquid by precipitation and the purified water is drained. According to this method, the enhancement of treating efficiency and the minaturization of the installation can
申请日： 1980-09-18 公开公告日： 1982-03-30
分类号： C02F3/00;
C02F3/02; C02F3/34 发明设计人： YAMASHITA
TEIZOU 申请国代码： JP
优先权： 19800918 JP
12958580
摘 要 附 图：
be attained. 主权项：
权 利 要 求 说 明 书
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TREATMENT OF FILTHY WATER
