According to the Author Kalbar & et.al
(2012) it is conducted that, in this research the framework of the technology
for the wastewater treatment (WWT) is proposed. Then updated the selected
technology for the WWT system to reduce the impacts of the discharge waters for
municipal waters system. In this research work there are different technologies
which is used for the WWT like the ASP (Activated Sludge Process), MBR (membrane
bio-reactor), and SBR “Sequence Batch Reactors”.
This framework of technology is used to
identify the WWT system and managing the wastewater to reduce the impacts of
the discharge water. The purpose of this research is that to update these technologies
for the WWT for the reduction. The availability of the limited sources is
driving the variation in the system which focused form the residues treatment
like a wastewater treatment toward the recovery.
The emerging technologies enable the recovery
of resources across the WWT. The design of the WWT is also provide the environmental
protection as well as the low cost sanitation through the additional benefits form
the reuse of water. Some of the technologies for the WWT is used the
terrestrial systems as well as the natural aquatic system. (Kalbar & et.al, 2012)
Author Igunnu & et.al (
2014), reviewd the WWT technologies of the produced water. As by an information
the porduced water is the complex mixture for the inorganic as well as organic
compound of a large volumne through the genration of the recovery opertaions oil and the gas.In this research technologies
for the WWT examines that how we remove the impact on the discharged water to
use the electrochemical techniques that is used in this area and its compare
for the future development.
The
suggestion is that the WWT technologies which is based on the electrochemistry
and it could be of the future to produce the water management where the potential
of the electrolyte is relatively good conductivity .In different condition when
applied the photo electrochemistry, photochemical engineering that could be achieved
the storage of energy, for the production of clean water along with the
recovery of valuable metals to produce the minimal impact on environment.
WWT
is the key platform that is based on the technological development and it is
also focused for the variation of the production system. In the 2nd phase
of the WWT the Ferrate Treatment technology is the power unit for the high Valant,
in the iron molecule which oxidize the chemical process and it is also scaling
on the organism of co-precipitate which is dissolved in the particulate metals.
The technology for the WWT is the Ferrate Treatment that is extremely power to
deliver the various treatments from a specific applications which create the disinfections
of the products that is very difficult to solve these treatment challenges for
the oxidants (Igunnu & et.al, 2014).
Now first of all updated all these
technologies for the WWT to reduce the discharge water. For this procedures
explain all these technology for the understanding of updating.
Activated Sludge Process
According to the Author McIlroy & et.al, (2015) it is conduted that the
Activated Sludge Process is most common for the suspeneded growth in the
process of the muncipal WWT beacsue it is alos reduced the the impact of the
discharged water. The activated sludge provess includes the;
·
Aeration of the wastewater in presence of Micribial
suspension
·
Aeration of the Soild liquid seprations
·
Excess biomass for the WWT
·
Aertion tank which retrun the remining biomass (McIlroy
& et.al, 2015)
The main aim of this activated sludge system
is to maintain and manage the minimum amount of micro-organisms in water by
supplying water in proper way. Then after this in such environment these
micro-organism are involved in converting colloidal and soluble material that
are present in wastewater into cell that are called activated sludge and also
into end products. These micro-organism then undergo in some changes according
to the environment and reproduce.
The term activated mainly comes from the
particles that are actively teeming with beneficial protozoa and sewage
bacteria. It can be seen that the Activated sludge is quite different term and
process from the smelly anaerobic sludge process that is involved in removing
primary settlement chambers from the waste water. In this process the live
bacteria also known as activated bacterial sludge.
This type of plants have a lot of advantages
that include, there are longer emptying intervals are present in sewage. This
is very reliable and quite simple process of remove waste from water. There is
not a single moving part is present in this plant.
After some time there is a lot of up
gradation has been done on this technology to make it more reliable and more
beneficial to use as waste water treatment process.
According to the author Li (2016), he has
gave information about the comparison of hyper thermophilic-mesophilic in
activated sludge process. There is some up gradation has been done in this
process to make it more perfect in the future. For the single stage process
there is production of methane process. The results shows that if activated
sludge process contain two stages so this means more methane gas will be
produce that will help to kill bacteria from the sewage. It can be seen that
recirculation in this process will increase the microbial community diversity (Wu, et al., 2016).
In this article the author Andrew (2012), was
involved in making some optimization in the activate sludge process. In this
paper he has presented a multiobjective model that can be used for optimizing
the activated sludge process for the waste water treatment process. In this
process the energy is minimized in proper way, and also its quality has been
enhanced. These three different function in the activated sludge process that
are required to be optimized is airflow rate, the total suspended solids and
carbonaceous biochemical oxygen demand of the effluent.
All of
these functions are optimized through the use of multiobjective model that
contain multiobjective particle swarm optimization algorithm. The results shows
that there is some trade off required that is between quality and energy saving
of the effluent. It can be seen that there is 15% reduction in the airflow but
in that case energy saving process is increased also the quality of effluent (Kusiak & Wei, 2012).
In this article the author Bing was involved
in making some changes in the activated sludge process through the help of
Adsorption and biodegradtion of antibiotics. For this process he has removed
about 11 antibiotics from this water. This can be done through two series of
batch reactor for activated sludge process. For improving this technology the
absorption and biodegradtion are the two important routes that can be used for
improving the quality of this process.
From
all of these 11 antibiotics, cephalexin was removed with the help of
biodegradtion in freshwater and also in sewage water. Other harmful chemicals
in the waste water that include Ampicillin, ofloxacin, norfloxaxcin are removed
through the help of absorption in the activated sludge process. But there are
some cations like calcium and magnesium are present in sewage water are
involved decreasing the absorption process, and they also exhibited some
biodegradability in the reactor. The results shows that through the use of
these processes in perfect order the efficiency of this process can be improve
easily.
After this the next waste water treatment
method is membrane bio reactor. This reactor is use to clean the waste water
from sewage.