摘要
采用混凝-砂滤-微滤-反渗透集成技术深度处理抗生素制药废水,现场试验表明:混凝-砂滤-微滤能有效去除废水中的悬浮物和浊度,去除部分氨氮和CODCr,降低废水的SDI15值,为后续反渗透提供合格的进水;反渗透能去除进水中的绝大部分无机盐、色度和CODCr,产水通量较稳定;产水水质符合《城市污水再生利用工业用水水质》(GB/T 19923-2005)中冷却补充水的要求.
As wastewater discharge regulations become more and more stringent and the cost of freshwater mcreases, reclamation of wastewater becomes more and more attractive. This paper explored the possibility of the advanced treatment of pharmaceutical effluent containing antibiotic with coagulation - sand filtration - MF- RO process in a pilot - scale. The average removal of SS and CODcr by coagulation unit were 86.6% and 32.8%, respectively. The average removal of NH3 - N, turbidity and CODCr by MF unit were about 31.8%, 98.4% and 23.2%, respectively. Regardless of the variations of feed qualities, the SDI15 of MF filtrate was lower than 5. The coagulation - sand filtration- MF process could provide stable and eligible feed for sequent RO membrane. The rejection of RO membranes used for total salt, CODCr and sulphates were higher than 97 %, 95 % and 92 %, respectively. Appropriate chemical cleanings could recover MF and RO membrane performance. The permeate quality of the RO membranes could meet the cooling water requirement.
出处
《膜科学与技术》
CAS
CSCD
北大核心
2008年第3期72-78,共7页
Membrane Science and Technology
基金
天津市科技攻关重点项目(03311810112)
关键词
抗生素制药废水
混凝
微滤
反渗透
集成技术
pharmaceutical effluent containing antibiotic
coagulation
microfiltration （MF）
reverse osmosis（RO）
integrated systems
