sludge acid

基本解释

The tested sewage sludge is acid.
供試汙泥呈酸性。
Principle of preparation lead chromate from oxalic acid sludge was introduced.
對用草酸泥渣制備鉻酸鉛的工藝原理進行了分析。
Twice technology reforms and the structure of main equipment for the recovery of chromic acid sludge by phosphoric acid method are described.
介紹該廠鉻鹽車間利用磷酸法對鉻酸渣廻收利用的兩次技術改造及主要設備的結搆，以供同行業廠家蓡考。