A METHOD AND A SYSTEM FOR ADJUSTING S/NA -BALANCE OF A PULP MILL
收藏国家林业和草原科学数据中心2023-02-12 更新2024-03-07 收录
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资源简介：
The invention relates to a method and a system for adjusting S/Na-balance of a pulp mill， wherein an aqueous pulp mill liquor containing sulphides is diverted into a bioreactor and oxidized by means of sulphur-oxidizing microbes， thereby producing an aqueous suspension from which elemental sulphur can be separated as a precipitate and the residual solution may be directed to causticizing. Optionally， prior to oxidation in the bioreactor， the aqueous pulp mill liquor may be first stripped to obtain a gas stream containing H2S which is then scrubbed with a scrubbing solution to obtain an aqueous spent scrubbing solution containing sulphides， in which case the residual solution can be used to replenish the scrubbing solution.
提供机构：
国家林业和草原科学数据中心
创建时间：
2023-02-12
