Resources Recycling (자원리싸이클링)
- Volume 15 Issue 5 Serial No. 73
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- Pages.52-56
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- 2006
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- 2765-3439(pISSN)
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- 2765-3447(eISSN)
Preparation of PAC for Water Treatment Chemicals Using Waste Aluminum Dross
알루미늄 폐드로스로부터 수처리응집제용 염화알루미늄 제조
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Park, Hyung-Kyu
(Korea Institute of Geoscience and Mineral Resources)
;
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Choi, Young-Yoon
(Korea Institute of Geoscience and Mineral Resources)
;
- Eom, Hyoung-Choon (University of Science and Technology) ;
- Bae, Dong-Su (Sungjin Chemical Co.)
- Published : 2006.10.27
Abstract
Waste aluminum dross was leached with hydrochloric acid to prepare PAC, poly aluminium chloride, used as water treatment chemicals. Metallic aluminum remained in the waste aluminum dross was dissolved into the hydrochloric acid solution. The solution could be used as PAC after adjusting the required alumina concentration and the basicity. Comparing to the conventional method far preparation of PAC using aluminum hydroxide, material cost could be saved in this method. Also, there is an additional merit in view of recycling of the waste aluminum dross by reducing the amount of waste dross to be landfilled.
국내 알루미늄 재생업체에서 알루미늄 용해시 발생되는 알루미늄 폐드로스를 사용하여 수처리응집제로 사용되는 폴리염화알루미늄(PAC: Poly Aluminium Chloride)를 제조하였다. 알루미늄 폐드로스를 염산과 반응시켜 폐드로스 중에 잔류하는 금속알루미늄을 PAC용액으로 제조함으로써 수산화알루미늄과 염산을 원료로 사용하여 PAC를 제조하는 종래의 방법에 비해 제품의 원료비를 줄일 수 있고, 알루미늄 폐드로스를 재활용함으로써 매립 등으로 폐기시켜야 할 폐드로스의 양을 줄이는 효과가 있다.