Copper and zinc in sludge extract were removed by improved ferrite coprecipitation process using limemilk as neutralization reagent.
采用改进铁氧体共沉淀法,用石灰乳溶液作中和剂,从污泥浸出液中去除铜、锌。
2
Different from sodium hydroxide and ammonia and other alkalizers, the limemilk has many advantages, such as high rate of alkalinization, low dosage and low price.
与烧碱、氨水等碱化剂不同,石灰乳具有碱化率高,用药量少,价格低等优势。
3
The most common method is primary neutralization with limemilk, but the result is not satisfied the discharge standard and deposits will pollute environment once again.