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| Advanced Treatment of Eucalyptus Pulping Wastewater by Thermal Modified Attapulgite |
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| DOI：10.11980/j.issn.0254-508X.2014.10.002 |
| Key Words:specific surface area attapulgite thermal modification eucalyptus pulping wastewater |
| Author Name | Affiliation | | 何帅明 | 华南理工大学制浆造纸工程国家重点实验室,华南理工大学植物资源化学与化工联合实验室,广东广州,510640 | | 莫立焕 | 华南理工大学制浆造纸工程国家重点实验室,华南理工大学植物资源化学与化工联合实验室,广东广州,510640 | | 徐 峻 | 华南理工大学制浆造纸工程国家重点实验室,华南理工大学植物资源化学与化工联合实验室,广东广州,510640 | | 王聪聪 | 华南理工大学制浆造纸工程国家重点实验室,华南理工大学植物资源化学与化工联合实验室,广东广州,510640 | | 鲁礼成 | 华南理工大学制浆造纸工程国家重点实验室,华南理工大学植物资源化学与化工联合实验室,广东广州,510640 | | 李 军 | 华南理工大学制浆造纸工程国家重点实验室,华南理工大学植物资源化学与化工联合实验室,广东广州,510640 |
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| Abstract:The thermal modification mechanism of attapulgite was studied by specific surface area testing, SEM analysis and TG analysis. The effect of calcination temperature, calcination time of the attapulgite, the initial pH value of the waste water to be tested, dosage of attapulgite and reaction time on the efficiency of advanced treatment of eucalyptus pulping wastewater was investigated. The results showed that the optimum conditions were: attapulgite calcination temperature was 400℃, calcination time was 2 h, the dosage was 50 g/L, and the reaction time was 90 min, without adjusting wastewater initial pH. CODCr removal rate could reach 59%, color removal rate could reach 84% under the conditions. |
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