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



شاطر | 
 

 Phosphorus Removal from Wastewater/ ازالة الفوسفور من مياه الصرف بيولوجيا وكيميائيا

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عدد المساهمات : 3484
تاريخ التسجيل : 15/09/2009
العمر : 49
الموقع : مصر

مُساهمةموضوع: Phosphorus Removal from Wastewater/ ازالة الفوسفور من مياه الصرف بيولوجيا وكيميائيا   السبت مارس 10, 2012 3:19 am

Phosphorus Removal from Wastewater

BY

GENERAL.DR

BAHAA BADR

TECHNOLAB EL-BAHAA GROUP

In most wastewater treatment facilities, opportunities for significantly improving phosphorus removal without major capital investment exist.

Biological phosphorus removal alone can oftentimes provide compliance with effluent limits of 0.5 mg/L total-phosphorus; sometimes lower.

In order to consistently meet permit limits of less than 0.5 mg/L, effluent filtration
and/or chemical treatment is generally necessary.

To optimize phosphorus removal, it generally makes sense to explore, experiment, and evaluate biological treatment options.

That is, seek ways to either (a) establish a pre-anaerobic treatment zone, or (b) import an anaerobic sidestream back into the mainstream.

Bacteria release phosphorus in anaerobic conditions and then take up much more than was released during subsequent aerobic conditions.

Exactly why this happens is complicated and subject to some scientific debate. Volatile Fatty Acids (VFAs) play a big part.

The anaerobic-aerobic cycle can either occur in the mainstream flow, or a sidestream waste can be subjected to anaerobic conditions and reintroduced to the mainstream flow.

For sidestream wastes, it is best to keep the anaerobic treatment in a “fermentation” stage.

This is done by periodically (say, daily for an hour) aerating the anaerobic tank to kill of the methane producing bacteria.

Biological Phosphorus Removal: pre-Anaerobic Zone
Facilities equipped with pre-anoxic treatment tanks are the easiest to convert to pre-anaerobic.

To make the anaerobic, the dissolved oxygen (DO) needs to be reduced to zero.

This can usually be done by: (a) reducing internal recycle pumping, (b) lowering aeration tank DO levels, and/or (c) eliminating all extraneous sources of oxygen.

A dissolved oxygen meter can be used to confirm that a pre-anoxic tank is anaerobic. Even better is to use an ORP meter.

An ORP reading of -250 at the pre-anaerobic tank outlet is typically sufficient.

Internal Recycle.

Our experience with facilities that internally recycling three to four times the influent rate has not been good.

We’ve found that better denitrification results from internally recycling one times the influent flow or less.

A very effective way of reducing oxygen input is to reduce the internal recycle rate and, to the extent practical, RAS rates too.

Minimizing these oxygen inputs is usually the quickest, easiest way to transform a pre-anoxic tank to pre-anaerobic.

Aeration DO. Aeration tanks require enough oxygen to provide complete BOD and ammonia removal.

Once these objectives have been met, there is no need for further oxygen.

Careful control of aeration tank DO not only saves money in reduced electrical expenditures, it improves pre-anoxic / pre-anaerobic treatment

Surplus oxygen, in fact, is recycled back to the pre-anoxic tank where it is toxic to the denitrification process.

Eliminate oxygen inputs. Oxygen enters the pre-anoxic tank in three ways:

(1) with the influent, RAS, and/or internal recycle;

(2) by mixing – air lift mixers, surface aeration, floor mount aeration;

and (3) splashing of influent flows that introduce air.

DO inputs need to be minimized to keep conditions anaerobic.

Finally,

regarding pre-anaerobic treatment, the longer the retention time, the easier it is to maintain truly anaerobic conditions.

The easiest ways to increase hydraulic retention time are to
minimize internal recycling and/or add tanks.

Minimizing RAS pumping may be something worth considering.

Biological Phosphorus Removal:

Introducing Anaerobically treated waste

In situations where it is not practical to create an anaerobic treatment zone ahead of aeration, it is oftentimes possible to import or create an anaerobic waste that will provide the same quality of phosphorus removal.

The following options exist: (a) trucking in septic pump-out waste (septage), and/or (b) returning a portion of anaerobically treated sludge, be it primary sludge, gravity thickener waste, RAS or WAS.

Septage.

The processing of trucked-in septic tank waste can, for some facilities, provide sufficient anaerobically treated waste to allow for effective biological phosphorus removal.

If the volume of septage is large relative to plant flow, the anaerobic waste may provide enough volatile fatty acids (VFAs) for the aeration tank bacteria to take up phosphorus to meet effluent phosphorus limits.

Making it work may (or may not) involve some creative pretreatment, storage, pumping and piping to convey the waste to the aeration tank.

Return anaerobically treated sludge.

Any form of anaerobically held sludge can be used as a source of VFAs: primary, secondary, mixed.

As long as the sludge has been held long enough to become anaerobic, VFAs are formed.

Fully anaerobically digested sludge, however, contains few VFAs;

the acids are broken down and are not available for phosphorus removal.

The ideal sludge treatment is to “ferment” the sludge long enough to create VFAs, but not so long as to break down the volatile fatty acids.

This can be done by aerating the sludge holding tank for an hour per day.

If a portion of the waste activated sludge is returned, it will be necessary to increase the wasting rate. Otherwise the mixed liquor concentration will increase.

Chemical Phosphorus Removal

Various chemicals can be used to effectively remove phosphorus: iron solutions, aluminum solutions, or lime.

Each compound has its advantages and disadvantages as discussed below.

To meet stringent phosphorus limits it is generally most cost effective to add chemicals to more than one location.

In order to determine the best chemical(s) the typical practice is to perform jar testing with various chemicals prior to full-scale, in-plant trials.

Most chemical supply companies will perform an such an evaluation for free.

When evaluating options, one thing to consider is the fact that chemical treatment only works on the soluble fraction.

Particulate phosphorus – the phosphorus that is attached to effluent TSS particles – will not be removed by chemicals.

If the effluent TSS is over 10 mg/L or if effluent total-phosphorus concentrations of less than 0.5 mg/l are required, an understanding of soluble vs. insoluble effluent total-P is important.

An important consideration in selecting chemicals is sludge disposal.

The use of aluminum products

creates a sludge with increased aluminum.

Sludge incineration facilities can be adversely impacted by aluminum; it causes struvite to form as “clinkers.”

Some incinerators won’t take aluminum laded sludge.

Some of the more common chemical addition points are:

(a) influent (precipitant is removed in primary clarifiers),

(b) aeration tanks – beginning, middle, end (precipitant is removed in secondary clarifiers),

and (c) prior to filtration (precipitant is removed during filtration).

The advantages of using iron salts are: better dewatering, sulfate removal (odor control as a bonus), material can be stored out-of-doors, and BOD removal.

The disadvantages of using iron salts are: safety (the material is highly corrosive), consumes alkalinity, and stains UV bulbs and reduces UV efficiency.

The advantages of using aluminum salts are: lower overall cost, less alkalinity is consumed, can be used as direct filtration aide, and is more tolerant to overfeeding.

The disadvantages to using aluminum salts are: it must be stored inside and some incinerators will not accept aluminum treated sludge.

Lime is delivered as a powder in bulk.

It is alkaline and difficult to work with.

Because it needs to be slaked prior to use, it is not practical for facilities with flows of less than 5 MGD.
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عدد المساهمات : 3484
تاريخ التسجيل : 15/09/2009
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مُساهمةموضوع: انواع البكتريا الموجودة فى خزانات المعالجة البيلوجية لازالة الفوسفور من مياه الصرف الصناعى   السبت مارس 10, 2012 3:35 am

([[
u]b]a) Mastigamoeba invertans (b) Filamoeba nolandi (c) Litonotus carinatus
(d) Aspidisca dentate (e) Vorticella campanula (f) rotaria

Figure. Microbial species found in aeration tanks[
/u]
[/b]

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Phosphorus Removal from Wastewater/ ازالة الفوسفور من مياه الصرف بيولوجيا وكيميائيا
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