|
EDI是水处理技术上一项革命性技术。该技术应用电再生离子交换除盐工艺取代传统混合离子交换除盐工艺DI。通过离子交换树脂及选择性离子膜达到高脱盐效果，与反渗透结合的联合工艺使产水水质可达10-15MΩ
.CM的高规格产水。
EDI采用标准组件设计可根据要求组合成任意系统，产水量可达1-450m3/h。
工作原理
供给原水进入EDI系统，主要部分流入树脂／膜内部，而另一部分沿膜板外侧流动，以洗去透出膜外的离子。
树脂截留水中的溶存离子。
被截留的离子在电极作用下，阴离子向正极方向运动，阳离子向负极方向运动。
阳离子透过阳离子膜，排出树脂／膜之外。
阴离子透过阴离子膜，排出树脂／膜之外。
浓缩了的离子从废水流路中排出。
无离子水从树脂／膜内流出。
 EDI
is a revolutionary technology for the water
treatment. This technology uses the
demineralization process of electrical
regeneration ion exchange instead of traditional
demineralization process of mixed ion exchange
DI. The resin and selective ion membrane can
reach high desalination effect by exchanging the
ion, and if the process is combined with reverse
osmosis , the water quality can be up to 10-15M
Ω.CM.
EDI uses the standard modules in
design and can be assembled into arbitrary
system according to the requirement,water output
can be up to 1-450m3/h.
Working principle
The supplied raw water enters
into EDI system,main portion flows into resin/membrane,and
the other portion flows along the outboard of
the membrane plate,in order to clean the ion
outside the membrane.
Resin captures undissolved ion
The captured ion is forced by the
electrode,anion moves to anode,and cation moves
to cathode.
Cation permeates cation
membrane,and discharges from resin/membrane.
Anion permeates anion
membrane,and discharges from resin/membrane.
Concentrated ion discharges from
the wastewater flow channel.
Non- ion water discharges from
resin/membrane.
 |
