STUDY ON ADVANCED TREATMENT OF PULPING MEDIUM WASTEWATER WITH POTASSIUM FERRATE(VI)

被引：0
|
作者：
Wang Lele [1 ]
Lan Huixia [1 ]
Liu Xiaofeng [1 ]
机构：
[1] Qingdao Univ Sci & Technol, Coll Environm & Safe Engn, Qingdao 266042, Peoples R China
来源：
RESEARCH PROGRESS IN PAPER INDUSTRY AND BIOREFINERY (4TH ISETPP), VOLS 1-3 | 2010年
关键词：
potassium ferrate(VI); advanced treatment; pulping medium wastewater;
D O I：
暂无
中图分类号：
Q81 [生物工程学（生物技术）]; Q93 [微生物学];
学科分类号：
071005 ; 0836 ; 090102 ; 100705 ;
摘要：
In this paper, potassium ferrate is used in oxidation of pulping medium wastewater after biochemical treatment. The optimal pH and the best dosage of potassium ferrate are determined. And then a large number of residual Fe(3+) is used in flocculation with suitable flocculant. During the experiment, mainly three kinds of flocculants are selected: polyacrylamide (PAM), polyaluminium chloride(PAC) and activated silicic acid(ASI). According to the experiment, the treatment efficiency of PAM is the best. After the wastewater is pretreatment by adding 60 mg/L potassium ferrate at pH=4, pH is adjusted to 8, and 1.5 mL/L PAM(concentration is 1 parts per thousand) is added for flocculation. After the treatment, the COD is under 60mg/L, and the removal rate of COD reaches 48%, that agrees with the national first-order discharge standard.
引用
收藏
页码：1122 / 1124
页数：3
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