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اسنشاريين
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حسب كل مشكلة كل على حدة
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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
 
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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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 طرق معالجة الصرف الصحى للمنازل والتجمعات السكنية بيولوجيا/HOME AEROBIC WASTEWATER TREATMENT: AN ALTERNATIVE TO SEPTIC SYSTEMS

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مُساهمةموضوع: طرق معالجة الصرف الصحى للمنازل والتجمعات السكنية بيولوجيا/HOME AEROBIC WASTEWATER TREATMENT: AN ALTERNATIVE TO SEPTIC SYSTEMS   السبت مارس 10, 2012 5:59 am

HOME AEROBIC WASTEWATER TREATMENT:
AN ALTERNATIVE TO SEPTIC SYSTEMS

BY

GENERAL.DR

BAHAA BADR

TECHNOLAB EL-BAHAA GROUP

In
these communities, central sewerage
systems are often not cost-effective, so
many homeowners rely on septic systems
or other systems that treat and dispose of
household wastewater onsite.

Some
homes for which septic systems are not a
good option rely on individual home
aerobic systems for wastewater treatment.

Aerobic systems are similar to septic
systems in that they both use natural
processes to treat wastewater.

But unlike
septic (anaerobic) treatment, the aerobic
treatment process requires oxygen.

Aerobic treatment units, therefore, use a
mechanism to inject and circulate air
inside the treatment tank.

This mechanism
requires electricity to operate.

For this reason, aerobic systems cost
more to operate and need more routine
maintenance than most septic systems.


However, when properly operated and
maintained, aerobic systems can provide
a high quality wastewater treatment
alternative to septic systems.

Why choose aerobic treatment?

This is due, in part, to the widespread use
of septic systems.

Septic tank-soil absorption systems are
relatively inexpensive and are easy to
maintain.

They are the most common
onsite wastewater treatment systems used
in rural areas. However, there are many
households for which a septic system may
not be the best wastewater treatment
option.

For example, septic systems are not
suitable for every lot.

In fact, approximately
two-thirds of all the land area in
the U.S. is estimated to be unsuitable for
the installation of septic systems.

Some
homes may not have enough land area or
appropriate soil conditions to accommodate
the soil absorption drainfield.

In
some communities, the water table is too
high to allow the drainfield to give
adequate treatment to the wastewater
before it is returned to the groundwater.

Other site-related concerns include
homes located on wooded lots or on lots
close to a body of water.

Homeowners in
wooded areas may not want to clear
enough land to install a septic tank and
drainfield, and the wastewater treated by a
septic system is often not of high enough
quality to be discharged very close to a
body of water.

But one of the most common reasons
that aerobic wastewater treatment units
are chosen by communities is to replace
failing septic systems.

-----------------------------------------------------------------------------------------------

HOW AEROBIC TREATMENT WORKS

Aerobic systems treat wastewater using
natural processes that require oxygen.

Bacteria that thrive in oxygen-rich
environments work to break down and
digest the wastewater inside the aerobic
treatment unit.

Like most onsite systems, aerobic
systems treat the wastewater in stages.

Sometimes the wastewater receives
pretreatment before it enters the aerobic
unit, and the treated wastewater leaving the
unit requires additional treatment or
disinfection before being returned to the
environment.

Such a variety of designs exist for home
aerobic units and systems that it is
impossible to describe a typical system.

Instead, it is more practical to discuss how
some common design features of aerobic
systems work and the different stages of
aerobic treatment.

PRETREATMENT

Some aerobic systems include a
pretreatment step to reduce the amount of
solids in the wastewater going into the
aerobic unit.

Solids include greases, oils,
toilet paper, and other materials that are put
down the drain or flushed into the system

Too much solid material can clog the unit
and prevent effective treatment.

Some pretreatment methods include a
septic tank, a primary settling compartment
in the treatment unit, or a trash trap.

Pretreatment is optional but can greatly
improve a unit’s performance.

AEROBIC TREATMENT UNITS

The main function of the aerobic unit is to
collect and treat household wastewater,
which includes all water from toilets,
bathtubs, showers, sinks, and laundry.

Aerobic units themselves come in many
sizes and shapes—rectangular, conical, and
some shapes that defy classification.

Suspended Growth Units

The process most aerobic units use to
treat wastewater is referred to as suspended
growth.

These units include a main compartment
called an aeration chamber in
which air is mixed with the wastewater.

Since most home aerobic units are buried
underground like septic tanks, the air must
be forced into the aeration chamber by an
air blower or a compressor.

The forced air mixes with wastewater in
the aeration chamber, and the oxygen
supports the growth of aerobic bacteria that
digest the solids in the wastewater.

This
mixture of wastewater and oxygen is called
the mixed liquor.

The treatment occurring in the mixed
liquor is referred to as suspended growth
because the bacteria grow as they are
suspended in the liquid unattached to any
surface.

Unfortunately, the bacteria cannot digest
all of the solids in the mixed liquor, and
these solids eventually settle out as sludge.

Many aerobic units include a secondary
chamber called a settling chamber or
clarifier where excess solids
can settle.

Other designs allow the sludge
to accumulate at the bottom of the tank

In aerobic units designed with a separate
settling compartment, the sludge returns to
the aeration chamber (either by gravity or
by a pumping device).

The sludge contains
bacteria that also aid in the treatment
process.

Although, in theory, the aerobic
treatment process should eventually be
able to consume the sludge completely, in
practice, the sludge does build up in most
units and will need to be pumped out at
least once a year so that solids don’t clog
the unit.

Attached Growth Units

An alternative design for aerobic
treatment is the attached growth system.

These units treat wastewater by taking a
surface made of material that the bacteria
can attach to, and then exposing that
surface alternately to wastewater and air.

This is done either by rotating the surface
in and out of the wastewater or by dosing
the wastewater onto the surface.

Pretreatment
is required.

The air needed for the
process is either naturally present or is
supplied mechanically.

Attached growth systems, such as trickling
filters and rotating disks, are less
common than suspended growth systems,
but have certain advantages.

For example,
there is no need for mixing, and solids are
less likely to be washed out of the system
during periods of heavy household water
use.

Flow Design

The way and the rate in which wastewater
is received by and flows through the
aerobic unit differs from design to design.

Continuous flow designs simply allow the
wastewater to flow through the unit at the
same rate that it leaves the home.

Other
designs employ devices (such as pretreatment
tanks, surge chambers, and baffles) to
control the amount of the incoming flow.

Batch process designs use pumps or
siphons to control the amount of wastewater
in the aeration tank and/or to discharge
the treated wastewater in controlled
amounts after a certain period of time.

Controlling the flow of wastewater helps
to protect the treatment process. When too
much wastewater is flushed into the system
all at once, it can become overburdened,
--------------------------------------------------------------------------------------------------

HOW AEROBIC
TREATMENT WORKS

soil or directly to a body of water.

Your
health department is familiar with local
regulations and the treatment options that
are best in your area and for your property.

Soil absorption fields (or drainfields) are
the most common method of final
treatment used for septic systems.

If an
aerobic system is being used in place of a
septic system or to replace a failing septic
system, a drainfield may not be an option.

However, an aerobic unit can sometimes
help to prolong the life of a drainfield.

The amount of dissolved oxygen
contained in wastewater from an aerobic
unit can help the growth of microorganisms
that treat the wastewater in the soil,
and can help prevent the pores in the soil
from clogging.

However, when aerobic
units malfunction, they can release solids
that can clog the drainfield, which may
cancel out any potential benefits.

Evapotranspiration beds are a less common
method of final treatment and use
vegetation and evaporation to naturally
treat the wastewater.

Drip irrigation is
another less commonly used method to
treat and dispose of wastewater.


Sand filters are sometimes used to treat
the wastewater from aerobic units.

The
wastewater is pumped evenly over several
layers of sand and gravel, which are
located either above or below ground.

As
with soil treatment systems, the purification
process is aided by bacteria that occur
naturally in the sand.

Disinfection is another method of
treatment commonly used with aerobic
units.

Some units have the disinfection
process incorporated into the unit design.

In some cases, disinfection may be the
only treatment required of the wastewater
from an aerobic unit before the water is
released into the environment.

One
disadvantage of this method is the added
cost of the disinfectants, such as chlorine.

OTHER DESIGN CONSIDERATIONS

Controls and Alarms

Most aerobic units have controls that can
be switched on and off by the homeowner
in case of emergency.

Aerobic units also
are required to have alarms to alert the
homeowner of malfunctions.

Depending
on the design of the system, controls and
alarms can be located either inside or
and the quality of treatment can suffer.

The
disadvantages to mechanical flow control
devices are that, like all mechanical
components, they need maintenance and
run the risk of malfunctioning.

Homeowners can help their system’s
performance by conserving water.

Leaking
faucets and running toilets should be
repaired, and washing machines and dishwashers
should be used only when full.

Installing water saving devices in toilets,
faucets, and showers can reduce water use
by up to 50 percent.

Also, homeowners
should try to space out activities requiring
heavy water use (like laundry) to avoid
overloading their systems.

FINAL TREATMENT AND
DISPOSAL

Although properly operated and
maintained aerobic units are very effective,
the wastewater leaving the units is not
ready to be returned to the environment
and must receive final treatment or
disinfection.

Methods for final treatment
include discharge to a soil absorption field,
a sand filter, or an evapotranspiration bed.

Sometimes, the wastewater receives
disinfection before being discharged to the
outside the home, and alarms can be
visible, audible, or both.

Homeowners should make sure that
controls and alarms are always protected
from corrosion, and that the aerobic unit is
turned back on if there is a power outage or
if it is turned off temporarily.

Size
Aerobic units should be large enough to
allow enough time for the solids to settle
and for the wastewater to be treated.

The
size of most units range from 300 to 1,500
gallons per day, but local regulations often
require that the unit be at least large
enough to handle 500 gallons of wastewater
per day.

The needed size of an aerobic unit is
often estimated the same way the size of a
septic tank is estimated, by the number of
bedrooms (not bathrooms) in the house.

It
is assumed that each person will use
approximately 50 to 100 gallons of water
per day, and that each bedroom can accommodate
two people.

When calculated this
way, a three-bedroom house will require a
unit with a capacity of 300 to 600 gallons
per day.

Some health departments require that
aerobic units be sized at least as large as a
septic tank in case the aerobic unit
malfunctions and oxygen doesn’t mix with
the wastewater.

In such cases, the aerobic
unit will work as a septic tank—which
will, at least, provide partial treatment for
the wastewater.

Temperature
Lower temperatures tend to slow down
most biological processes, and higher
temperatures tend to speed them up.

The
aerobic process itself creates heat, which,
along with the heat from the electrical
components, may help to keep the
treatment process active. However, cold
weather can have adverse effects on the
performance of aerobic units.


In one study of aerobic units, there were
problems when the temperature of the
wastewater inside some of the units fell
below 15 degrees Celsius (59 degrees
Farenheit).

Problems can sometimes be
avoided by insulating around the units.

Your health department should know
whether aerobic systems are suitable for
your area.




















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طرق معالجة الصرف الصحى للمنازل والتجمعات السكنية بيولوجيا/HOME AEROBIC WASTEWATER TREATMENT: AN ALTERNATIVE TO SEPTIC SYSTEMS
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