由于多年未认真清塘,底泥淤积,溶氧不足,水色过浓,亚硝酸盐的积累;使得池塘的生态环境日趋恶化,疾病频发。相应的对策,除了要求挖掉过厚的淤泥,增氧和施石灰是两条主要的改良水质措施。而这二点过氧化钙(CaO_2)都能做到。日本人利用它制成了专用水质改良剂,商品名为卡尔奥金。该物为白色结晶粉末。 As many years did not seriously clear the pond, sediment deposition, lack of dissolved oxygen, aqua too thick, the accumulation of nitrite, making the pond deteriorating ecological environment, frequent diseases. Corresponding measures, in addition to digging too thick mud, oxygen and lime are two major measures to improve water quality. And these two calcium oxide (CaO_2) can do it. Japanese use it made of a special water quality improver, trade name Cal’Au gold. The material is white crystalline powder.