摘要
山西某矿区因黄泥、铝土使得煤泥水属于典型高浓度煤泥水,为节约成本,实现煤泥水最优化处理,通过对不同药剂进行煤泥水絮凝试验,以浑液面沉速和上清液浊度为考察指标,分别进行了药剂比选、分部投加、配合投加试验,除此之外,还对有机絮凝剂和无机混凝剂配合比试验进行了优化。结果显示:选用有机絮凝剂APAM-6080和无机絮凝剂PAFC,采用配合投加效果较好,且有机絮凝剂采用6:4的分部投加可节省药剂量10%~40%。当煤泥水浓度范围为SS=50~120 g/L时,所需药剂为100~133.3 g药/t煤,其出水指标中沉速为3.5~5.2 mm/s,上清液浊度为48~60 NTU。对煤泥水浓度与投药量建立数学模型:y=0.4722x+80.85。
The water of coal slime is a typical high concentration coal slurry water because of the yellow mud and alum clay existing in a coal mine of Shanxi. In order to save cost and achieve optimal treatment of coal sludge water, through the flocculation test of coal sludge water with different agents, using muddy surface sinking speed and supernatant turbidity as examining indexes, how to select, dose and match the agents was investigated. On the basis of this, the ratio of coagulant and flocculant was optimized. The results showed that when the organic flocculant APAM-6080 and the inorganic flocculant PAFC were used together, better result was obtained; when the organic flocculant was added by two steps（6：4）, the medicine dosage was saved by 10%-40%.When the concentration range of coal slime water was SS=50- 120 g/L, the required agent was 100-133.3 g/t. The precipitation rate was 3.5-5.2 mm/s, and the turbidity of the supernatant was 48-60 NTU.A mathematical model for the coal sludge concentration and agent dosage was established： y = 0.4722 x ＋ 80.85.
作者
刘聪
张钦库
吴喜军
高俊发
张亚宁
LIU Cong;ZHANG Qin-kua;WU Xi-jun;GAO Jun-fa;ZHANG Ya-ning(Yulin College Water Supply and Water Pollution Control Research Center,Shaanxi Yulin 719000,China;Water Supply and Water Drainage Key Laboratory of Ministry of Construction/School of Environmental Science and Engineering,Chang＇an University,Shaanxi Xi＇an 710054,China)
出处
《当代化工》
CAS
2018年第7期1370-1373,共4页
Contemporary Chemical Industry
基金
陕西省自然科学基金
项目号:2014JM2-5063
陕西省教育厅专项基金项目
项目号:No.15JK1862
榆林学院高层次人才科研启动基金项目
项目号:13GK27
关键词
煤泥水
有机絮凝剂
无机混凝剂
沉速
浊度
Coal slime water
Organic flocculant
Inorganic coagulant
Sinking speed
Turbidity
