Many Chinese paper and pulp industry are still using traditional CEH bleaching process, the wastewater which they discharge every year not only includes a large amount of COD and BOD, but also carcinogens materials, such as chlorophynols etc.
英
美
- 在我國還存在著(zhù)大量的傳統CEH三段漂白工藝,它們每年產(chǎn)生的廢水不但向環(huán)境排放大量的COD和BOD,而且還釋放出大量的氯酚等“三致”物質(zhì)(致癌、致畸、致突變)。