After 8 months of operation , 15 inspected quality indexes of the filtrate from filtration with the media met the standards for drinking water ( gb5749 - 85 ) , indicating that either darkened sand or its regenerated sands could be used as filter media as the new sand 黑化石英砂與其酸、堿清洗再生砂對(duì)待濾水水中濁度,鐵、錳去除效果良好,運(yùn)行8個(gè)月后檢測(cè)的15項(xiàng)水質(zhì)指標(biāo)都達(dá)到《生活飲用水衛(wèi)生標(biāo)準(zhǔn)gb5749 - 85 》要求,且與新砂濾料的處理效果相差無(wú)幾。