摘要
文章介绍了单段式排列和二段式排列反渗透系统在印制线路板废水回用的实例,通过两组系统在同等条件下的对比,结果表明：在进水TDS≤500 mg.L-1,系统回收率介于75%~80%,温度≤30℃的条件下,系统产水水质均能满足电导率≤100μs.cm-1的回用要求。单段式排列在能耗、透盐率方面比二段式高,但由于采用了短流程大循环设计,化学清洗周期长;如果能延长膜元件的更换周期,单段式的设计可能会更为经济;至于何种设计更为经济,应综合分析更换周期差和水质需求等因素。
The paper described an example of a single-stage arrangement and two-stage arrangement of reverse osmosis systems in printed circuit boards wastewater reuse,through the comparison of the two groups under the same conditions,the results showed that： in water the TDS ≤500 mg？L-1 conditions,system recovery between 75 % and 80 %,the temperature ≤30 ℃,the quality of water could meet the conductivity ≤100 μs？cm-1 reuse requirements.Single-stage arrangement of the system energy consumption,and the salt rate was higher than the two-stage,but due to the short process cycle design,the chemical cleaning cycle was more longer;if the replacement cycle of membrane components could be extended,the design might be more economical;As for what kind of design was more economical,should be combined analysis of the replacement cycle of poor and water quality requirements and other factors.
出处
《广东化工》
CAS
2012年第6期143-144,共2页
Guangdong Chemical Industry
关键词
废水回用
反渗透
线路板废水
浓水回流
wastewater reuse
reverse osmosis
PCB wastewater
concenrtate recirc
