The treating processes of papermaking wastewater by PDA prepared by our laboratory and some kinds of cationic polyacrylamide in the market are reported.

报道了自制和市售的几种阳离子聚丙烯酰胺对废纸再生造纸废水处理的研究过程。

属类：化学及生命科学-化学-论文文摘

The performances of inorganic coagulant(PAC),organic flocculant(cationic polyacrylamide)and the composite of inorganic and organic flocculants in treating papermaking wastewater have been compared.

比较了无机混凝剂聚合氯化铝或有机絮凝剂阳离子聚丙烯酰胺单独使用时和无机混凝剂与有机絮凝剂配合使用时处理废水的效果。

属类：化学及生命科学-化学-论文文摘

The results show that the removal efficiency of COD and colority of printing and dyeing wastewater can reach 69.8% and 71.0% by using WO3\CdS\W as heterogeneous photocatalyst,with the composition of m(WO3)\m(CdS)\m(W)=60∶39∶1,quantity 0.300 g,pH 6.5

实验结果表明:以WO3\CdS\W为复相光催化剂,其组成为m(WO3)\m(CdS)\m(W)=60∶39∶1(质量比)、用量为0.300g、试液pH为6.5、印染废水的COD、色度去除率分别达到69.8%、71.0%。

属类：化学及生命科学-化学-论文文摘

The results show that the performance of the composite of inorganic and organic flocculants is excellent.COD elimination efficiency of the treated water can reach 75% or more, and the transmittancy can reach 92%～99%.

结果表明:无机混凝剂与有机絮凝剂配合使用时有很好的处理效果。用自制阳离子聚丙烯酰胺(PDA)与PAC配合处理废纸再生造纸废水,出水COD去除率达75%以上,透过率达92%～99%。

属类：化学及生命科学-化学-论文文摘

papermaking wastewater;treatment of wastewater;coagulate;cationic flocculant

废纸再生造纸,污水处理,混凝沉淀,阳离子絮凝剂

属类：化学及生命科学-化学-论文文摘

By means of seeding EM(effective microorganisms)to domestic wastes,the concentration of total phosphorus can be decreased sharply.

向生活污水中接种有效微生物群(EM),能显著地降低其中总磷(TP)的浓度。

属类：化学及生命科学-化学-论文文摘

The experiments show that aeration and the alkaline environment are needed.

试验证明,曝气和碱性环境是必不可少的两个条件。

属类：化学及生命科学-化学-论文文摘

When the total phosphorus of domestic wastes is 4.295～29.839 mg\L,the optimum reaction conditions are as follows: the dosage is 0.8%,pH is 8,the aeration time is 6 hours and the reaction time is 24 hours.

对于原水总磷在4.295～29.839mg\L之间变化的污水,得出去除总磷的建议最佳组合:接种量0.8%、pH值为8、曝气时间为6h、反应时间为24h。

属类：化学及生命科学-化学-论文文摘

effective microorganisms;domestic sewage;total phosphorus

有效微生物群,生活污水,总磷

属类：化学及生命科学-化学-论文文摘

dyeing effluents;white rot fungus;rice straw powder

染料废水,白腐菌,稻草末

属类：化学及生命科学-化学-论文文摘

According to Chengdao Oilfield seawater quality and the treatment requirements of the injected seawater, the article discusses the coagulation, settlement, filtering, and purification technologies of injected seawater.

针对埕岛油田海域海水水质特点和注入海水的处理要求,研究了注入海水混凝沉降-过滤净化处理工艺技术。

属类：化学及生命科学-化学-论文文摘

purification technologies of seawater;coagulant;flocculent

海水净化技术,混凝剂,絮凝剂

属类：化学及生命科学-化学-论文文摘

Microwave digesting has been paid close attention as a new technology to process samples in advance. In this article,we discuss the application of microwave digest to the determination of total phosphorus.

微波消解作为样品预处理的新技术已受到普遍关注,作者讨论了微波消解在总磷测定中的应用

属类：化学及生命科学-化学-论文文摘

Compared with traditional digestion method,microwave digesting has high precision and accuracy,and especially,it saves time and power.

该法较传统消解法省时、省电,具有良好的精密度和准确度。

属类：化学及生命科学-化学-论文文摘

microwave digestion;precision;accuracy

微波消解,精密度,准确度

属类：化学及生命科学-化学-论文文摘

Aiming at the characteristic of the specific water quality,the silicon series prescription of water stabilizer has been chosen.

针对具体水质特点筛选出的硅系配方水稳剂

属类：化学及生命科学-化学-论文文摘

The feasibility of it has been analyzed according to its mechanism.

从机理分析其可行性

属类：化学及生命科学-化学-论文文摘

The cleaning,prefilming and operation on the spot have been practised.

再经现场清洗,预膜,正常运行,并对全过程进行监测

属类：化学及生命科学-化学-论文文摘

The monitor data have met the international and domestic relevant requirements.

监测数据均达到国标和中石化有关规定。

属类：化学及生命科学-化学-论文文摘

The water saving effect and economic benefit of it are obvious.

节水效果明显,效益显著。

属类：化学及生命科学-化学-论文文摘