KR20200098539A - 폐수의 처리 방법 - Google Patents
폐수의 처리 방법 Download PDFInfo
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- KR20200098539A KR20200098539A KR1020207017810A KR20207017810A KR20200098539A KR 20200098539 A KR20200098539 A KR 20200098539A KR 1020207017810 A KR1020207017810 A KR 1020207017810A KR 20207017810 A KR20207017810 A KR 20207017810A KR 20200098539 A KR20200098539 A KR 20200098539A
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- C01F11/46—Sulfates
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- C01F7/50—Fluorides
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- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
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- C02F1/68—Treatment of water, waste water, or sewage by addition of specified substances, e.g. trace elements, for ameliorating potable water
- C02F1/683—Treatment of water, waste water, or sewage by addition of specified substances, e.g. trace elements, for ameliorating potable water by addition of complex-forming compounds
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- C02F1/70—Treatment of water, waste water, or sewage by reduction
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- C02F2101/14—Fluorine or fluorine-containing compounds
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Abstract
Description
도 2 는, 실시예 2 의 전물 생성량과 알루미늄 농도의 변화를 나타내는 그래프이다.
도 3 은, 실시예 3 의 불소 농도와 비소 농도와 아연 농도의 변화를 나타내는 그래프이다.
Claims (3)
- 불소 및 중금속을 함유하는 산성 폐액으로부터 저불소량의 석고를 회수하여 중금속을 제거하는 폐액의 처리 방법으로서,
상기 산성 폐액에 알루미늄을 용해시켜 액 중의 불소를 플루오로알루민산 이온으로 하여 안정적으로 용존시킴과 함께 중금속 환원 전물을 생성시켜, 제 1 처리수와 상기 중금속 환원 전물로 분리하는 알루미늄 용해 공정,
상기 중금속 환원 전물의 제거 후에, 상기 제 1 처리수에 pH 4 이하의 액성하에서 칼슘 화합물을 첨가하여 석고를 생성시켜, 제 2 처리수와 상기 석고로 분리하는 석고 회수 공정,
상기 석고 제거 후에, 상기 제 2 처리수에 알칼리를 첨가하고, pH 5.5 ∼ 9.5 로 조정하여 전물량을 억제하면서 알루미늄 및 불소를 포함하는 전물을 생성시켜, 제 3 처리수와 상기 알루미늄 및 불소를 포함하는 전물로 분리하는 알루미늄 및 불소 제거 공정, 및
상기 알루미늄 및 불소를 포함하는 전물의 제거 후에, 추가로 상기 제 3 처리수에 알칼리를 첨가하여 pH 9.5 ∼ 11.8 로 조정하여 중금속 수산화물의 중화 전물을 생성시켜, 알칼리 중화 처리수와 상기 중금속 수산화물의 중화 전물로 분리하는 중화 공정을 갖는 것을 특징으로 하는 폐액의 처리 방법. - 제 1 항에 있어서,
상기 알루미늄 및 불소 제거 공정에 있어서, 상기 제 2 처리수의 액성을 pH 5.5 ∼ 7.0 으로 조정하여 전물량을 억제함과 함께 비소 및 아연의 전물화를 억제하여 불소와 알루미늄을 침전시키는, 폐액의 처리 방법. - 제 1 항 또는 제 2 항에 있어서,
상기 불소 및 중금속을 함유하는 산성 폐액이 비철 금속 제련소의 폐수인, 폐액의 처리 방법.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JPJP-P-2017-250885 | 2017-12-27 | ||
| JP2017250885A JP6986226B2 (ja) | 2017-12-27 | 2017-12-27 | 廃水の処理方法 |
| PCT/JP2018/048041 WO2019131832A1 (ja) | 2017-12-27 | 2018-12-27 | 廃水の処理方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20200098539A true KR20200098539A (ko) | 2020-08-20 |
| KR102556133B1 KR102556133B1 (ko) | 2023-07-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| KR1020207017810A Active KR102556133B1 (ko) | 2017-12-27 | 2018-12-27 | 폐수의 처리 방법 |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US11505480B2 (ko) |
| EP (1) | EP3733613B1 (ko) |
| JP (1) | JP6986226B2 (ko) |
| KR (1) | KR102556133B1 (ko) |
| CN (1) | CN111527052A (ko) |
| AU (1) | AU2018394168A1 (ko) |
| CA (1) | CA3087017A1 (ko) |
| CL (1) | CL2020001736A1 (ko) |
| MX (1) | MX2020006735A (ko) |
| PE (1) | PE20201192A1 (ko) |
| WO (1) | WO2019131832A1 (ko) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108249697A (zh) * | 2018-01-09 | 2018-07-06 | 上海化学试剂研究所有限公司 | 一种傅克反应产生的含铝废水的处理方法 |
| CN111777224B (zh) * | 2020-07-10 | 2022-07-22 | 紫金矿业集团股份有限公司 | 一种有色金属矿山多金属酸性废水综合利用的方法 |
| CN112479614B (zh) * | 2020-12-01 | 2022-06-10 | 济南大学 | 一种固化石膏中可溶性磷和氟的处理剂及其固化方法与应用 |
| CN114149099B (zh) * | 2021-07-29 | 2024-04-19 | 广西博世科环保科技股份有限公司 | 一种铝电解槽大修渣湿法处理废水的深度除氟工艺 |
| CN115745248A (zh) * | 2022-11-11 | 2023-03-07 | 太原碧蓝水利工程设计股份有限公司 | 一种治理煤矿酸性废水的方法及资源化利用方法 |
| CN119456649A (zh) * | 2024-11-22 | 2025-02-18 | 浙江大学 | 一种焚烧飞灰闭环脱氯除盐的方法 |
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- 2018-12-27 KR KR1020207017810A patent/KR102556133B1/ko active Active
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Also Published As
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| PE20201192A1 (es) | 2020-11-06 |
| EP3733613A1 (en) | 2020-11-04 |
| MX2020006735A (es) | 2020-08-24 |
| CA3087017A1 (en) | 2019-07-04 |
| CN111527052A (zh) | 2020-08-11 |
| JP6986226B2 (ja) | 2021-12-22 |
| US11505480B2 (en) | 2022-11-22 |
| WO2019131832A1 (ja) | 2019-07-04 |
| KR102556133B1 (ko) | 2023-07-14 |
| AU2018394168A1 (en) | 2020-07-16 |
| EP3733613B1 (en) | 2023-03-15 |
| CL2020001736A1 (es) | 2020-10-23 |
| US20210070637A1 (en) | 2021-03-11 |
| EP3733613A4 (en) | 2021-09-15 |
| JP2019115883A (ja) | 2019-07-18 |
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