摘要
介绍了海水全膜法处理系统的运行特点及易发故障,认为应该从海水含盐量、有机物、硬度、微生物含量高的特点出发进行分析,找到膜污染、设备损坏等故障与运行维护的关系,提出从水质、加药、表计、气动阀、腐蚀、设备本体等方面加强维护及改进的方法。经长期实践检验,取得了良好的效果,在设备脱盐率,回收率等主要指标基本保持不变的情况下,设备清洗周期大幅延长,化学清洗从1年3次降至1年1次,提高了设备可靠性。
We introduce the characteristics of seawater membrane treatment system and the common failures, analyze and find out the relationship between the membrane pollution, equipment damage and the maintenance based on high salt concentration, high organic matter, high hardness, rich in micro- organisms. The author presents a method of enhancing the maintenance and transformation in the aspects of water quality, dosing, online meter, pneumatic valve, corrosion, equipment body. Good results have been achieved after long-term practice. In the condition of normal desalination rate and recovery rate, chemical washing cycle is greatly extended, from three times a year to once a year, so the equipment reliability is greatly improved.
出处
《水处理技术》
CAS
CSCD
北大核心
2015年第10期131-133,136,共4页
Technology of Water Treatment
关键词
全膜法
海水淡化
故障
membrane water treatment
seawater desalination
failure
