مجموعة تكنولاب البهاء جروب

تحاليل وتنقية ومعالجة المياه
 
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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



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 evaporation and evaporaters

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عدد المساهمات : 3596
تاريخ التسجيل : 15/09/2009
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مُساهمةموضوع: evaporation and evaporaters   السبت مايو 01, 2010 8:45 pm

Evaporation and evaporators of boilers
Principles
Vaporisation
Vaporisation is the change of a liquid substance to a gas or a vapor. There is fundamentally no difference between the terms gas and vapor, but gas is used commonly to describe a substance that appears in the gaseous state under standard conditions of pressure and temperature, and vapor to describe the gaseous state of a substance that appears ordinarily as a liquid or solid.
When heat is added to a liquid at its boiling point, with the pressure kept constant, the molecules of the liquid acquire enough energy to overcome the intermolecular forces that bind them together in the liquid state, and they escape as individual molecules of vapor until the vaporization is complete. The temperature of a boiling liquid remains constant until all of the liquid has been converted to a gas.
For each substance a certain specific amount of heat must be supplied to vaporize a given quantity of the substance. This amount of heat is known as the latent heat of vaporization of the substance. The quantity of heat applied for each gram (or each molecule) undergoing the change in state depends on the substance itself. For example, the amount of heat necessary to change one gram of water to steam at its boiling point at one atmosphere of pressure, i.e., the heat of vaporization of water, is approximately 540 calories.

Evaporation
Liquids can also change to gases at temperatures below their boiling points. Vaporization of a liquid below its boiling point is called evaporation, which occurs at any temperature when the surface of a liquid is exposed in an unconfined space. When, however, the surface is exposed in a confined space and the liquid is in excess of that needed to saturate the space with vapor, an equilibrium is quickly reached between the number of molecules of the substance going off from the surface and those returning to it. A change in temperature upsets this equilibrium; a rise in temperature, for example, increases the activity of the molecules at the surface and consequently increases the rate at which they fly off.
The thermal motion of a molecule overcomes the surface tension of the liquid and it evaporates, that is, its kinetic energy exceeds the work function of cohesion at the surface
. When the temperature is maintained at the new point for a short time, a new equilibrium is soon established.
The pressure exerted by the vapor of a liquid in a confined space is called its vapor pressure. It differs for different substances at any given temperature, but each substance has a specific vapor pressure for each given temperature. At its boiling point the vapor pressure of a liquid is equal to atmospheric pressure. For example, the vapor pressure of water, measured in terms of the height of mercury in a barometer, is 4.58 mm at 0°C and 760 mm at 100°C (its boiling point).


The factors which influence evaporation are:
• Concentration of the substance evaporating in the air. If the air already has a high concentration of the substance evaporating, then the given substance will evaporate more slowly.
• Concentration of other substances in the air. If the air is already saturated with other substances, it can have a lower capacity for the substance evaporating.
• Temperature of the substance. If the substance is hotter, then evaporation will be faster.
• Flow rate of air. This is in part related to the concentration points above. If fresh air is moving over the substance all the time, then the concentration of the substance in the air is less likely to go up with time, thus encouraging faster evaporation. In addition, molecules in motion have more energy than those at rest, and so the stronger the flow of air, the greater the evaporating power of the air molecules.
• Inter-molecular forces. The stronger the forces keeping the molecules together in the liquid of solid state the more energy that must be input in order to evaporate them.

Evaporators
Evaporation units (or evaporators) use the evaporation principle for the treatment of process water, waste water and water based waste. The tipical liquid treated is an aqueous waste with organic and inorganic pollutants having a concentration not greater then 100 g/L.
Different types of evaporators can face different water treatment problem with different performances.
The productive capacity varies from 0.15 to 60 tons/day and the all the models can concentrate the wastewater as a pumpable fluid, easily reaching a concentrate with 30% of TDS, with low power consumption.
Evaporators can also treat pre-concentrated or scaling liquids, or concentrated acids and extremely corrosive liquids. They use heat pump, hot water or steam, or Mechanical Vapor Recompression (MVR), with natural or forced
Some examples of evaporator applications concern the separation of water from:
• diluted galvanic baths to recover substances and active ingredients
• oil emulsions to recover oil
• degreasing baths rich in soap and detergents
• concentrated acid baths or highly corrosive solutions
• photographic developing baths
• concentrated saline solutions
• landfill leachate and drippings from waste stocking and disposal
• bilge waters
• rinsing waters containing exhausted inks
• synthesis intermediates and waste waters of the chemical, cosmetic and pharmaceutical industry


Examples of application
Zero discharge in aluminium poly-chloride production
Motivated by environmental authorities and by higher disposal costs, a Spanish company, located in an industrial area not far from Barcelona, developed in 2001 a plant (see Fig. 1) designed to treat the acid eluates of the resins used to process the wastewater of their production line.
The purpose of the plant was to recover the aluminium dissolved in the wastewater coming from offset plates printing plates.
The evaporator supplied was a heat pump vacuum evaporator with intermediate fluid: the material in contact with the concentrated waste and condensate is PTFE-coated steel and heat exchange is achieved in two PVDF and silicon carbide exchangers.
A year after start-up, analytical results confirmed the initial expectations of the end product - a constant density solution as demanded by the market for chemicals for water treatment. The distillate recycling for the production of the regeneration baths allowed to have local permission for the expansion of production since a zero discharge was obtained.
In the past, the company disposed of waste consisting of a solution of HCl and AlCl3 with a high annual cost and significant storage problems.
Currently, this cost item has been eliminated and, together with the limited plant management costs, it is able to sell the concentrated product on a stable basis, guaranteeing an annual income.
Treatment through vacuum evaporation of wastewater from engraving process
In the rotogravure process, the printing elements are engraved in a groove-shape on a cylinder. Then, the cylinder is immerged into the ink, which fills the engraved drawing, to transfer later the drawing directly to the paper.
The cylinder usually has an iron core and, before the engraving, is nickel plated, electrolitically copper plated and rectified. Then the cylinder is subject to the engraving and to the chromium plating before being placed on the rotary press. The engraving occurs by exposing the cylinder surface, on which a photosensitive gelatine has been spread, to a laser beam. The laser burns the gelatine and creates a groove, which will be then subjected to the corrosive action of a ferric perchloride solution.
It is the most important phase of the process. As soon as it is over, the cylinder is washed, in order to remove the traces of ferric perchloride and of the exceeding gelatine, dried and chromium plated.
The wastewaters produced during this process are split in four streams: rinsing waters from the nickel plating, from the copper plating, from the engraving and from the chromium plating. All these wastewaters are aqueous solutions with an acidic pH, a COD higher than 8000 ppm and a high content of heavy metals (nickel, chromium, copper and of other chemical species like chlorides and sulphates).
In particular, the engraving waters have a COD higher than 1500 ppm, an acidic pH lower than 1.5, a high contents of iron and chlorides and a conductivity higher than 80000 µS/cm, index of a high salinity. The iron and chlorides concentration, coming from the ferric perchloride, used in the engraving is critical for this kind of wastewaters.
The high concentration of heavy metals and specially the high contents of chlorides have made the traditional anti-pollution techniques not successful.
In the treatment process, the four streams are stored in a tank in order to homogenize them.
Then the wastewaters are subjected to a pH adjustment, by adding caustic soda 30%, in order to neutralize part of the acidity and to reach a 5.5 pH.
The evaporation occurs by means of two heat pump vacuum evaporators.
These evaporators produce two streams: a distillate, continuously produced, and a concentrate, automatically discharged in a discontinuous way.
The distillation yield is about 90%. The distillate is recycled in the process.
The concentrate, which is stored in a proper tank, is disposed of, in accordance with the regulations in force.
The plant is able to treat 4200 m3/year of waste waters.



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evaporation and evaporaters
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مجموعة تكنولاب البهاء جروب :: قسم معالجة وتنقية وتحاليل المياه :: معالجة الغلايات وانظمة البخار المكثف-
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