期刊文献+
共找到7篇文章
< 1 >
每页显示 20 50 100
阜新天然沸石加工利用初探 被引量:1
1
作者 孟凡娜 马云东 《辽宁工程技术大学学报(自然科学版)》 CAS 北大核心 2003年第B08期133-135,共3页
阜新天然沸石储量大、品位高、沸石类型好,如何有效地加工利用是当前亟需解决的问题。论文根据阜新沸石的特点和目前的开发利用状况,提出开发阜新天然沸石加工利用的新途径,阜新天然沸石应主要用于水处理吸附剂和化工添加剂,并针对天然... 阜新天然沸石储量大、品位高、沸石类型好,如何有效地加工利用是当前亟需解决的问题。论文根据阜新沸石的特点和目前的开发利用状况,提出开发阜新天然沸石加工利用的新途径,阜新天然沸石应主要用于水处理吸附剂和化工添加剂,并针对天然沸石为难选矿物,研究探讨了分选加工技术,具体阐述了浮选与重选联合工艺流程和改性技术。 展开更多
关键词 阜新市 天然沸石 加工利用 水处理吸附剂 化工添加剂 分选加工 浮选 重选 改性 非金属矿产资源
下载PDF
Removal of Heavy Metal Ions from Wastewater by Using Biosorbents from Marine Algae-A Cost Effective New Technology 被引量:2
2
作者 虞启明 PairatKaewsarn +2 位作者 马卫东 JoseT.Matheickal 尹平河 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2001年第2期133-136,共4页
Heavy metal pollution from industrial wastewater is a worldwide environmental issue. Biosorption of heavy metals by using biosorbents derived from various types of biomass has been shown to be effective for the uptake... Heavy metal pollution from industrial wastewater is a worldwide environmental issue. Biosorption of heavy metals by using biosorbents derived from various types of biomass has been shown to be effective for the uptake of heavy metal ions. In this study, biosorbents derived from the biomass of a group of marine macroalgae were used for the removal and recovery of heavy metal ions from aqueous solutions. Results indicated that the biosorbents have high uptake capacities and affinities for a number of heavy metal ions. The uptake capacities of the biosorbents were in the range of 1.0 to 1.5mmol·g-1 for divalent heavy metal ions. The kinetics of the uptake process was fast and the process can be used in both batch and fixed-bed operations. It appears that the biosorption process by using biosorbents from marine macroalgae can be an efficient and cost effective technology for the treatment of heavy metal containing wastewater. 展开更多
关键词 biosorption of heavy metal BIOSORBENT marine algae wastewater treatment
下载PDF
Adsorption of Heavy Metal Ions by Adsorbent from Waste Mycelium Chitin 被引量:4
3
作者 苏海佳 王丽娟 谭天伟 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2002年第6期650-652,共3页
The adsorption properties of chitin adsorbent from mycelium of fermentation industries for the removal of heavy metal ions were studied. The result shows that the chitin adsorbent has high adsorption capacity for many... The adsorption properties of chitin adsorbent from mycelium of fermentation industries for the removal of heavy metal ions were studied. The result shows that the chitin adsorbent has high adsorption capacity for many heavy metal ions and Ni2+ in citric acid. The influence of pH was significant:When pH is higher than 4.0, the high adsorption capacity is obtained,otherwise H+ ion inhibits the adsorption of heavy metal ions. The comparison of the chitin adsorbent with some other commercial adsorbents was made, in which that the adsorption behaviorchitin adsorbent is close to that of commercial cation exchange adsorbents, and its cost is much lower than those commercial adsorbents. 展开更多
关键词 mycelium chitin adsorbents heavy metal ions
下载PDF
Adsorption of catechol from aqueous solution by aminated hypercrosslinked polymers 被引量:1
4
作者 SUNYue LIXiao-tao XUChao CHENJin-long LIAi-min ZHANGQuan-xing 《Journal of Environmental Sciences》 SCIE EI CAS CSCD 2005年第4期584-588,共5页
Adsorption of catechol from aqueous solution with the hypercrosslinked polymeric adsorbent NDA-100 and its derivatives AH-1, AH-2 and AH-3 aminated by dimethylamine, the commercial resin Amberlite XAD-4 and weakly bas... Adsorption of catechol from aqueous solution with the hypercrosslinked polymeric adsorbent NDA-100 and its derivatives AH-1, AH-2 and AH-3 aminated by dimethylamine, the commercial resin Amberlite XAD-4 and weakly basic anion exchanger resin D301 was compared. It was found that the aminated hypercrosslinked resins had the highest adsorption capacities among the tested polymers. The empirical Freundlich equation was successfully employed to describe the adsorption process. Specific surface area and micropore structure of the adsorbent, in company with tertiary amino groups on matrix affected the adsorption performance towards catechol. In addition, thermodynamic study was carried out to interpret the adsorption mechanism. Kinetic study testified that the tertiary amino groups on the polymer matrix could decrease the adsorption rate and increase the adsorption apparent activation energy. 展开更多
关键词 hypercrosslinked polymer CATECHOL ADSORPTION THERMODYNAMICS KINETICS
下载PDF
Adsorbent made from CEPT sludge in wastewater enhanced treatment
5
作者 许国仁 张为堂 孙丽欣 《Journal of Harbin Institute of Technology(New Series)》 EI CAS 2005年第3期271-274,共4页
The potential application of adsorbents made from CEPT sludge in municipal wastewater treatment was investigated under various conditions, such as the adsorbent dosage, pH, and the different dosing order modes of ferr... The potential application of adsorbents made from CEPT sludge in municipal wastewater treatment was investigated under various conditions, such as the adsorbent dosage, pH, and the different dosing order modes of ferric chloride and the adsorbent. The adsorbent obtained from sludge contributes to sludge disposal, while reducing the fresh ferric chloride dosage. The enhanced removal efficiencies of turbidity, UV(254), COD, total phosphorus (TP) are 90.48%,77.80%,50.62% and 96.33% respectively when 3 g/L of the sludge-adsorbent was used in the coagulation process. The maximum adsorption capacity (Q°) of the sludge-adsorbent for COD was over 184.52 mg/gand that for TP was 4.98 mg/gadsorbent optimally as the dosage of the adsorbent was 0.6 g/L. When 10 mg/L of ferric chloride and 0.6 g/L of the adsorbent were used at the first stage simultaneously, the enhanced removal efficiencies of turbidity, UV(254), COD, TP were 83.33%,52.30%,48.84% and 88.96% respectively. The pH value in the raw water played a significant role in the coagulation and adsorption process. The optimum pH value was between 4 and 11. 展开更多
关键词 CEPT ADSORBENT SLUDGE chemical activation COAGULATION
下载PDF
ADSORPTION OF PHENYLACETIC ACID ON MACROPOROUS POLYMERIC ADSORBENTS
6
作者 PANBingcai CHEN Jinlong +2 位作者 XIONG Ying SUN Yue ZHANG Quanxing 《Chinese Journal of Reactive Polymers》 2002年第1期61-68,共8页
Several macroporous polymeric adsorbents (NDA-999, XAD-8, X-5 and XAD-2) were employed in the study to adsorb phenylacetic acid from aqueous solution. Effect of salt and ambient temperature on adsorption was studied u... Several macroporous polymeric adsorbents (NDA-999, XAD-8, X-5 and XAD-2) were employed in the study to adsorb phenylacetic acid from aqueous solution. Effect of salt and ambient temperature on adsorption was studied using NDA-999 adsorbent and the adsorption process conforms to Freundlich抯 model reasonably. Adsorption dynamics were conducted in batch experiments in order to make clear the mechanism of adsorption process. It is proved that the squared driving force mass transfer model can be adopted to elucidate the process. The treatment process of industrial wastewater containing high strength of phenylacetic acid was proposed for cleaner production of phenylacetic acid. 展开更多
关键词 Macroporous polymeric adsorbents phenylacetic acid ADSORPTION wastewater treatment
下载PDF
TREATMENT OF SORBIC ACID MANUFACTURING WASTEWATER BY HYPERCROSSLINKED POLYMERIC ADSORBENT (NDA-150)
7
作者 SHAO Li ZHANG Quanxing +1 位作者 LUO Gang CHEN Jinlong 《Chinese Journal of Reactive Polymers》 2002年第2期177-184,共8页
The treatment of sorbic acid manufacturing wastewater by NDA-150 resin was investigated. The experiments show that this process is suitable for the treatment of sorbic acid manufacturing wastewater. About 98% sorbic a... The treatment of sorbic acid manufacturing wastewater by NDA-150 resin was investigated. The experiments show that this process is suitable for the treatment of sorbic acid manufacturing wastewater. About 98% sorbic acid and 50% CODcr were removed under optimal operating conditions, and 70% of sorbic acid in sorbic acid manufacturing wastewater was reclaimed. This process makes it possible to recover valuable materials from the wastewater and to improve the quality of effluent water. 展开更多
关键词 Sorbic acid ADSORPTION Hypercrosslinked polymeric adsorbent NDA-150
下载PDF
上一页 1 下一页 到第
使用帮助 返回顶部