本研究利用去氧核糖核酸(DNA)具有可吸附含苯物質之特殊性質應用於染整廢水的脫色工程 中，選用直接性染料、酸性染料、鹽基性染料、反應性染料作為吸附效果測試，但因為去氧核 糖核酸具優良之水溶性質且製成薄膜後容易脆裂使其應用範園受到限制，從文獻得知，硝酸銅 可以當作DNA的交聯劑，但硝酸銅本身為重金屬物質，因此本研究嘗試利用無毒且具生物分 解性的海藻酸鈉與DNA進行混合並含浸於不織布，探討改質後DNA的溶解率，以及對致癌 性染料的吸附效果。DNA-Alginate含浸不織布對各染料進行吸附效果測試後，發現吸附效果 會因為不同類型的染料及染料粒子大小而有不同。DNA-Alginate含浸不織布(D5A3)對各染料 的吸附率經過七天後達平衡穩定達85°%以上，而C.I. Basic Blue41經過四天後達平衡穩定最佳 吸附率則達95.16°%。

This research makes use of study that the deoxyribonucleic acid (DNA) has special properties can adsorbed benzene substances on the decolorization engineering that applied to dyeing wastewater, selection of direct dyes, acid dyes, basic dyes, reactive dyes to adsorption test, but because of the film that make from deoxyribonucleic acid have excellent water-soluble and break easily, Therefore, it is limit the scope of application, literature reviews, previously used cupric nitrate crosslinked DNA ,but cupric nitrate is heavy metals, Therefore the present research attempts to use alginate have character that non-toxic and biodegradable to modified DNA, discussion on Discussion on dissolution rate about modification of DNA and the adsorption effect of carcinogenic dyes, The results show the adsorption on DNA-Alginate non-woven fabric, Discovered the adsorption effect will different from dye , Dye adsorption rate increase more than 85% and the data remain stable after seven days on DNA-Alginate non-woven fabric(D5A3), And C.I. Basic Blue 41 have the best absorption rate reached 95.16% and remain stable after four days.