مجموعة تكنولاب البهاء جروب

تحاليل وتنقية ومعالجة المياه
 
الرئيسيةالبوابةمكتبة الصورس .و .جبحـثقائمة الاعضاءالمجموعاتالتسجيلدخول
تنظيف وتطهير وغسيل واعادة تاهيل الخزانات


معمل تكنولاب البهاء جروب
 للتحاليل الكيميائية والطبية
والتشخيص بالنظائر المشعة
 للمخدرات والهرمونات والسموم
 وتحاليل المياه

مجموعة
تكنولاب البهاء جروب
لتصميم محطات الصرف الصناعى والصحى
لمعالجة مياه الصرف الصناعى والصحى
مجموعة تكنولاب البهاء جروب
المكتب الاستشارى العلمى
دراسات علمية كيميائية



معالجة الغلايات وانظمة البخار المكثف
معالجة ابراج التبريد المفتوحة
معالجة الشيللرات
مجموعة تكنولاب البهاء جروب
اسنشاريين
كيميائيين/طبيين/بكترولوجيين
عقيد دكتور
بهاء بدر الدين محمود
رئيس مجلس الادارة
استشاريون متخصصون فى مجال تحاليل وتنقية ومعالجة المياه
متخصصون فى تصنيع وتصميم كيماويات
معالجة الصرف الصناعى والصحى
حسب كل مشكلة كل على حدة
تصنيع وتحضير كيماويات معالجة المياه الصناعية
مؤتمرات/اجتماعات/محاضرات/فريق عمل متميز
صور من وحدات معالجة المياه


technolab el-bahaa group
TECHNOLAB EL-BAHAA GROUP
EGYPT
FOR
WATER
TREATMENT/PURIFICATION/ANALYSIS
CONSULTANTS
CHEMIST/PHYSICS/MICROBIOLIGIST
 
INDUSTRIAL WATER
WASTE WATER
DRINKING WATER
TANKS CLEANING
 
CHAIRMAN
COLONEL.DR
BAHAA BADR EL-DIN
0117156569
0129834104
0163793775
0174041455

 

 

 

تصميم وانشاء محطات صرف صناعى/waste water treatment plant design

technolab el-bahaa group
egypt
We are a consultants in water treatment with our chemicals as:-
Boiler water treatment chemicals
Condensated steam treatment chemicals
Oxygen scavenger treatment chemicals
Ph-adjustment treatment chemicals
Antiscale treatment chemicals
Anticorrosion treatment chemicals
Open cooling tower treatment chemicals
Chillers treatment chemicals
Waste water treatment chemicals
Drinking water purification chemicals
Swimming pool treatment chemicals
Fuel oil improver(mazote/solar/benzene)
technolab el-bahaa group
egypt
We are consultants in extraction ,analysis and trading the raw materials of mines as:-
Rock phosphate
32%-30%-28%-25%
Kaolin
Quartez-silica
Talcum
Feldspae(potash-sodumic)
Silica sand
Silica fume
Iron oxid ore
Manganese oxid
Cement(42.5%-32.5%)
Ferro manganese
Ferro manganese high carbon

 

water treatment unit design


 

وكلاء لشركات تركية وصينية لتوريد وتركيب وصيانة الغلايات وملحقاتها
solo agent for turkish and chinese companies for boiler production/manufacture/maintance

 

وكلاء لشركات تركية وصينية واوروبية لتصنيع وتركيب وصيانة ابراج التبريد المفتوحة

 

تصميم وتوريد وتركيب الشيللرات
design/production/maintance
chillers
ابراج التبريد المفتوحة
مجموعة تكنولاب البهاء جروب
المكتب الاستشارى العلمى
قطاع توريد خطوط انتاج المصانع
 
نحن طريقك لاختيار افضل خطوط الانتاج لمصنعكم
سابقة خبرتنا فى اختيار خطوط الانتاج لعملاؤنا
 
1)خطوط انتاج العصائر الطبيعية والمحفوظة والمربات
2)خطوط انتاج الزيوت الطبيعية والمحفوظة
3)خطوط انتاج اللبن الطبيعى والمحفوظ والمبستر والمجفف والبودرة
4)خطوط تعليب وتغليف الفاكهة والخضروات
5)خطوط انتاج المواسير البلاستيك والبى فى سى والبولى ايثيلين
6)خطوط انتاج التراى كالسيوم فوسفات والحبر الاسود
7)خطوط انتاج الاسفلت بانواعه
Coolمحطات معالجة الصرف الصناعى والصحى بالطرق البيولوجية والكيميائية
9)محطات معالجة وتنقية مياه الشرب
10)محطات ازالة ملوحة البحار لاستخدامها فى الشرب والرى
11)الغلايات وخطوط انتاج البخار الساخن المكثف
12)الشيللرات وابراج التبريد المفتوحة وخطوط انتاج البخار البارد المكثف
 
للاستعلام
مجموعة تكنولاب البهاء جروب
0117156569
0129834104
0163793775
 
القاهرة-شارع صلاح سالم-عمارات العبور-عمارة 17 ب
فلا تر رملية/كربونية/زلطيه/حديدية

وحدات سوفتنر لازالة عسر المياه

مواصفات مياه الشرب
Drinking water
acceptable
values

50

colour

acceptable

Taste

nil

Odour

6.5-9.2

ph

 

1 mg/dl

pb

5 mg/dl

as

50 mg/dl

cn

10 mg/dl

cd

0-100mg/dl

hg

8 mg/dl

f

45 mg/dl

N02

1 mg/dl

Fe

5 mg/dl

Mn

5.1 mg/dl

Cu

200 mg/dl

Ca

150 mg/dl

Mg

600 mg/dl

Cl

400 mg/dl

S04

200 mg/dl

Phenol

15 mg/dl

zn

 

 

الحدود المسموح به
ا لملوثات الصرف الصناعى
 بعد المعالجة
Acceptable
values
treated wate water
7-9.5

ph

25-37 c

Temp

40 mg/dl

Suspended solid

35 mg/dl

bod

3 mg/dl

Oil & grase

0.1 mg/dl

hg

0.02 mg/dl

cd

0.1 mg/dl

cn

0.5mg/dl

phenol

1.5 ds/m

conductivity

200 mg/dl

na

120 mg/dl

ca

56 mg/dl

mg

30 mg/dl

k

200 mg/dl

cl

150 mg/dl

S02

0.75 mg/dl

Fe

0.2 mg/dl

Zn

0.5 mg/dl

Cu

0.03 mg/dl

Ni

0.09 mg/dl

Cr

0.53 mg/dl

لb

0.15 mg/dl

pb

 





pipe flocculator+daf
plug flow flocculator
lamella settels

محطات تحلية مياه البحر بطريقة التقطير الومضى على مراحل
MSF+3.jpg (image)
محطات التقطير الومضى لتحلية مياه البحر2[MSF+3.jpg]
some of types of tanks we services
انواع الخزانات التى يتم تنظيفها
ASME Specification Tanks
Fuel Tanks
Storage Tanks
Custom Tanks
Plastic Tanks
Tank Cleaning Equipment
Double Wall Tanks
Septic Tanks
Water Storage Tanks
Fiberglass Reinforced Plastic Tanks
Stainless Steel Tanks
Custom / Septic
مراحل المعالجة الاولية والثانوية والمتقدمة للصرف الصناعى

صور مختلفة
من وحدات وخزانات معالجة الصرف الصناعى
 التى تم تصميمها وتركيبها من قبل المجموعة

صور
 من خزانات الترسيب الكيميائى والفيزيائى
 لوحدات معالجة الصرف الصناعى
المصممة من قبل المحموعة



technolab el-bahaa group


technolab el-bahaa group


technolab el-bahaa group

technolab el-bahaa group


technolab el-bahaa group


technolab el-bahaa group


technolab el-bahaa group


technolab el-bahaa group


technolab el-bahaa group


technolab el-bahaa group




مياه رادياتير اخضر اللون
بريستول تو ايه
انتاج شركة بريستول تو ايه - دمياط الجديدة
مجموعة تكنولاب البهاء جروب

اسطمبات عبوات منتجات شركة بريستول تو ايه-دمياط الجديدة

مياه رادياتير خضراء فوسفورية

من انتاج شركة بريستول تو ايه 

بترخيص من مجموعة تكنولاب البهاء جروب


زيت فرامل وباكم

DOT3



شاطر | 
 

 المبادل الانيونى بالزيوليت لازالة العسر والملوحة

استعرض الموضوع السابق استعرض الموضوع التالي اذهب الى الأسفل 
كاتب الموضوعرسالة
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Admin


عدد المساهمات : 3443
تاريخ التسجيل : 15/09/2009
العمر : 49
الموقع : مصر

مُساهمةموضوع: المبادل الانيونى بالزيوليت لازالة العسر والملوحة   الأحد يونيو 16, 2013 2:06 pm

Ion Exchange Softening 1 


by


technolab-lab-el-bahaa group


general.dr


bahaa badr


water treatment consultant


01229834104




Ion Exchange Softening 


Ion-exchange is used extensively in small water systems and individual homes. 


Ion-exchange 
resin, (zeolite) exchanges one ion from the water being treated for another ion that is in the resin 
(sodium is one component of softening salt, with chlorine being the other). 


Zeolite resin 
exchanges sodium for calcium and magnesium.


The following chemical reactions show the 
exchange process, where X represents zeolite, the exchange material. 
Removal of carbonate hardness: 


 Ca(HCO3)
2 + Na2
X ------> CaX + 2NaHCO3 
 Mg(HCO3)
2 + Na2
X ------> MgX + 2NaHCO3
Removal of non-carbonate hardness: 
 CaSO4 + Na2
X ----- > CaX + Na2
SO4
 CaCl2 + Na2
X ------> CaX + CaCl2
 MgSO4 + Na2
X ------> MgX + Na2
SO4
 MgCL2 + Na2
X ------> MgX + 2NaC1 
These reactions represent cation exchange, the exchange of positive ions. To replenish the 
sodium ions used, units need to be regenerated with material containing high amounts of sodium, 
normally salt brine. This allows the resin to be reused many times. 
Ion-exchange does not alter the water’s pH or alkalinity. However, the stability of the water is 
altered due to the removal of calcium and magnesium and an increase in dissolved solids. For 
each ppm of calcium removed and replaced by sodium, total dissolved solids increase by 0.15 
ppm. For each ppm of magnesium removed and replaced by sodium, total dissolved solids 
increase by 0.88 ppm. 
Measurements used to express water hardness in ion-exchange differ from units used in limesoda softening. Hardness is expressed as grains per gallon rather than mg/l of calcium carbonate. 
1 grain/gallon 17.12 mg/l 
If water contains 10 grains of hardness, would hardness be expressed 171.2 mg/l? 
10 grains x 17.12 mg/l / grain 
 = 171.2 mg/l of hardness Ion Exchange Softening 2 
ADVANTAGES OF ION-EXCHANGE SOFTENING 
Compared with lime-soda ash softening, ion-exchange has certain advantages. It is compact and 
has a low capital cost. The chemicals used are safer for the operator to handle and operation is 
much easier. It can be almost totally automated. Because resins have the ability to remove all 
hardness from the water, treated water must be blended with water that has been by-passed 
around the softener (or adjustments made) to obtain a hardness level the operator needs to 
maintain. 
Many systems have found ion-exchange to be the most cost effective way to produce quality 
water for their customers. If zeolite units are used to soften surface water, it must be preceded by 
surface water treatment. 
EQUIPMENT AND OPERATION 
Ion-Exchange Resins 
Natural green sand called glauconite has very good exchange capabilities and was once widely 
used. Synthetic zeolites, known as polystyrene resins, are most commonly used now. Cost is 
reasonable, and it is easy to control the quality of the resin. They also have much higher ion 
exchange capacities than the natural material. 
The ability of the resin to remove hardness from the water is related to the volume of resin in the 
tank. Softeners should remove about 50,000 grains of hardness per cubic foot of resin. Resins 
hold hardness ions until they are regenerated with a salt brine solution. The hardness ions are 
exchanged for sodium ions in the salt brine. 
Example: 
If water contains 10 grains per gallon of hardness, how many gallons of water would the resin 
remove? The tank holds 500 cubic feet of resin with capability of removing 45,000 grains per 
gallon per cubic foot. 
Gallons = cubic feet x grains per cubic foot
 grains per gallon 
 = 500 cubic feet x 45,000 grains/cubic foot
 10 grains per gallon 
 = 22,500,000 grains
 10 grains/gallon 
 = 2,250,000 gallons before requiring regeneration Ion Exchange Softening 3 
Ion-Exchange Units 
These units resemble pressure filters. The interior is generally treated to protect the tank against 
corrosion from the salt. The units are normally of the downflow type, and the size and volume of 
the units are dictated by the hardness of the water and the volume of treated water needed to be 
produced between each regeneration cycle. Resin is supported by an underdrain system that 
removes the treated water and distributes brine evenly during regeneration. Minimum depth of 
resin should be no less than 24 inches above the underdrain. Ion Exchange Softening 4 
Salt Storage 
Salt is stored as a brine, ready to be used for regeneration of the resin. The amount of salt needed 
ranges from 0.25 to 0.45 pounds for every 1,000 grains of hardness removed. The tank should be 
coated with a salt-resistant material to prevent corrosion of the tank walls. 
Salts need to meet the AWWA or NSF 
standards for sodium chloride. Rock or 
pellet salt is the best for preparing brine 
and road salt is not acceptable, due to the 
dirt that it contains. 
Salt storage tanks should be covered to 
prevent contamination. A raised curb 
should be provided at each access hatch to 
prevent contamination by flood water or 
rain. 
Filling a salt storage tank with water first 
and then adding salt is the preferred 
method for making brine. The brine is 
heavier than water and settles to the 
bottom of the tank. The brine is usually 
pumped from the tank to the ion-exchange 
units. When making brine, water must be 
added through an air gap to avoid back 
siphonage of the brine to the water system. 
Brine Feeding Equipment 
Concentrated brine contains approximately 25 percent salt. The brine should be diluted to about 
10 percent before added to the softener. It is generally injected with a venturi or a metering 
pump. Solubility of salt decreases with a rise in temperature, which forces salt out of solution. 
Water that remains after the salt has separated out of the solution is subject to freezing. 
Therefore, brine piping should be protected from cold temperatures. 
Devices for Blending 
A properly operated ion-exchange unit produces water with zero hardness, but with high 
corrosivity. Since a total hardness of 85 to 100 mg/l is the most desirable, treated water from the 
ion-exchange unit is generally blended with source water to raise hardness in the finished water. 
Blending is normally accomplished by metering both the effluent from the softener and added 
raw water. Meters are installed in both lines so that the operator can adjust and monitor the 
blend. Ion Exchange Softening 5 
Softening Cycle 
The length of the softening cycle ends when 1 to 5 mg/l of hardness is detected in the effluent 
(loading rates for synthetic resins are in the area of 10 to 15 gpm/square foot of media surface 
area). Almost all softening units have an alarm on the water meter to indicate when a certain 
amount of water has passed through the exchange unit. 
Backwash Cycle 
Once hardness breaks through, the softener must be regenerated. In down-flow units, the resin 
must first be backwashed to loosen the resin (it becomes compacted by the weight of the water), 
and to remove any other material that has been filtered out of the water by the resin. The 
backwash rate is normally 6 to 8 gpm/square foot of zeolite bed area. The operator needs to 
apply enough backwash water to expand the resin bed by about 50 percent. The backwash water 
is usually discharged to a box containing orifice plates that measure the flow rate. Distributors at 
the top of the unit provide for uniform water distribution and uniform wash-water collection. 
Underdrains provide uniform distribution of the backwash water on the bottom of the resin. 
Regeneration 
Concentrated brine is pumped to the unit from the storage basin. Brine is diluted through the 
injector to a solution containing about 10 percent salt before it is passed through the resin. The 
time required for regeneration is about 20 to 35 minutes. The flow rate of brine through the resin 
is measured in gallons per minute per cubic foot of media. The brine needs to be in contact with 
the resin long enough to allow for complete exchange of hardness ions on the resin with sodium 
ions in the brine. It is better to allow too much time than to not allow enough. If the resin is not 
totally recharged, the next softening run will be short. 
Rinse Cycle 
The rinse cycle removes remaining brine from the tank. The total amount of rinse water needed 
is 20 to 35 gallons per cubic foot of resin. The rinse is started at a slow rate (-2 gpm/square foot 
of surface area-) and continues until the chloride concentration of the effluent (which should be 
monitored frequently) is quite low. 
Disposal of Brine 
The volume of brine used during a regeneration cycle, (together with the rinse water that 
follows) varies from 1.5 to 7 percent of the amount of water softened by the unit. The chloride 
concentration in this wastewater could be as high as 35,000 to 45,000 mg/l. Chlorides will upset 
a wastewater treatment plant, and disposal methods have to comply with Minnesota Pollution 
Control Agency requirements. Ion Exchange Softening 6 
Resin Breakdown 
Synthetic resins normally last 15 to 20 years, but certain conditions can cause resin to breakdown 
earlier. Oxidation by chlorine is probably the most common cause of resin breakdown. When 
chlorine is used to oxidize iron in the water, the chlorine should be removed before ion 
exchange. 
Iron Fouling 
Iron will significantly affect the ability of resins to remove hardness ions. Ferrous iron can be 
oxidized during softening and precipitate out as iron oxide on the resin, and no amount of brine 
will remove the iron fouling. If iron oxide is formed before ion exchange unit, it can be filtered 
out by the resin and removed during the backwashing of the unit. Normally if the iron 
concentration in the source water is high, iron removal is provided ahead of the exchange unit to 
prevent fouling of the unit. 
Suspended Material 
Turbidity, organic chemicals, and bacterial slimes resins resulting in the loss of some of the resin 
exchange capacity. The best solution is to remove of the suspended matter with coagulation, 
sedimentation, and filtration before the softening process. 
Unstable Water 
Water that has been softened by ion exchange will be corrosive and should be stabilized to 
prevent corrosion from taking place in the distribution system. Blending with raw water or 
adding phosphates or other chemicals to reduce the corrosivity of the water. 
TESTING 
Testing should include total hardness of raw and treated water, chloride concentration in the 
rinse water, and Langelier Index (pH of stability [pHs] - pH measured). If the Langelier Index is 
positive, a calcium scale will tend to coat the pipes in the distribution system. If the Langelier 
Index is negative, the water will tend to be corrosive. 
الرجوع الى أعلى الصفحة اذهب الى الأسفل
معاينة صفحة البيانات الشخصي للعضو http://technolabelbahaagp.googoolz.com
 
المبادل الانيونى بالزيوليت لازالة العسر والملوحة
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مجموعة تكنولاب البهاء جروب :: قسم معالجة وتنقية وتحاليل المياه :: تصميم وتركيب محطات تنقية المياه ومحطات الصرف الصناعى والصحى وازالة الملوحة-
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