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Complex wastewater treatment package middle of the road Introduction Wastewater treatment package for inter-route complexes is one of the most important needs of the complex It is in the middle of the road. Today, the travel and tourism industry is one of the most important ways to create Added value and more productivity in society is considered. One of the needs of the tourism industry And tourism is an intermediate welfare service complex. Providing welfare services on intercity roads in the form of service complexes Intermediary welfare is one of the needs from different physical, economic and social dimensions The environment can be investigated. In Iran, nearly 500 places have been considered for the establishment of these complexes. Welfare service complexes are the basis for the integration of the similarity of the road with the surrounding natural environment are considered
Integrated sewage middle of the road Today, tourism industries to It has become one of the major income-generating industries and many people spend their free time Or to get rid of the fatigue of daily work, they go for a walk and have fun. These people are passing by Between residential cities and recreational areas, they need places that provide recreational services and… Present. This is an integrated entertainment service Intersections vary from restaurant food to restrooms. Daily over A thousand passengers use health services and other services in the inter-route complex and This use of services is the reason for the production of a large amount of wastewater. Wastewater treatment package In the first stage, the intermediate complex must have the ability to treat a large amount of wastewater be Using this wastewater treatment package and choosing the best type is very important has The reasons for this importance are as follows:
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The sewage treatment package of the inter-way complex must have the ability to treat a large amount of sewage during the day, and this process must be carried out precisely so that the sewage pipes do not get clogged and do not cause pollution to the environment. During industrial and sanitary wastewater treatment, it should produce the least amount of sound and smell, because the production of a lot of smell causes annoyance to the customers and also a lot of sound disturbs their comfort. It must have the ability to completely purify the sewage of the complex that includes cosmetics, edibles, sewage from toilets, etc.
If any of the mentioned materials for the waste water treatment package of the Inter-way complex is not followed, it will cause customer dissatisfaction, and in this case, due to the high number of Inter-way complexes, for future trips from other Inter-way complexes use. This may be a small start to the demise of a large business.

Sewage treatment of the interstate complex Inter-way complex sewage, Including sanitary wastewater, wastewater from restaurants, wastewater from green space irrigation Around the complex and… Is. This wastewater definitely has a large amount and also different types of pollutants has in itself Treatment of this wastewater by a suitable integrated wastewater treatment package It is possible.
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Considering that welfare service complexes are located outside the cities and villages, it is not possible to implement urban and rural sewage in some of them, and the transfer of produced sewage to the urban and rural sewage network can be economically uneconomical. Inter-way welfare service complex has different parts such as:

Suite restaurant
Grocery store and…
Repair shop and car wash
petrol station
mosque
W.C
First aid unit
Parking for light and heavy vehicles
Children’s playground
Bank

Due to the daily reception of hundreds of passengers in these complexes, the produced wastewater can be dangerous for the environment and cause the pollution of the surrounding environment. .

Considering that welfare service complexes are located outside the cities and villages, it is not possible to implement urban and rural sewage in some of them, and the transfer of produced sewage to the urban and rural sewage network can be economically uneconomical. Inter-way welfare service complex has different parts such as: Suite restaurant Grocery store and… Repair shop and car wash petrol station mosque W.C First aid unit Parking for light and heavy vehicles Children’s playground Bank Due to the daily reception of hundreds of passengers in these complexes, the produced wastewater can be dangerous for the environment and cause the pollution of the surrounding environment. .
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The components of the sewage treatment package of the inter-way complex

littering

The first step that can be included in an integrated wastewater treatment package is the scavenger. Garbage removal means using different types of filters to prevent the entry of large size solids into the sewage in other stages. If this step is removed from the wastewater treatment package of the inter-way complex, there is a possibility of clogging of the sewer pipes.

Seeding

The second step included in the wastewater treatment package of the inter-way complex is filtration for granulation. Granulation means the removal of small-sized solid particles in the wastewater, which were not removed from the effluent of the inter-way complex during the garbage collection process.
Sedimentation

The process of flocculation, sedimentation and flocculation used in the wastewater treatment package of the inter-way complex are mainly two consecutive processes. Colloidal particles cannot settle due to their surface charge. During the coagulation and flocculation process and after that, chemicals are added to the wastewater and the surface charge of the particles is neutralized. After this neutralization, coagulation is possible. The important point is that sedimentation should be allowed for coagulation. After particle settling and flocculation, a large amount of suspended solid particles is also removed.

flotation flotation, using Aeration is done and during this process in the wastewater treatment package of the inter-way complex, aeration It becomes a factor so that the remaining solid particles and oils come to the surface of the sewage and in finally be removed by a paddle. This process can be called fat removal process as well be famous Filtering Filtering in the purification package Combined sewer means the use of a sand filter that removes solid particles Deletes not deleted in previous steps. Activated Sludge This process also including The processes in the Bin Complex wastewater treatment package are a way to treat the Bin Complex wastewater is a way From this purification method, which is a combination of aeration and a biological process consisting of Bacteria and single-cell hosts are used in many types of wastewater treatment packages. Activated sludge is used to remove organic pollutants and this process mainly includes The sections of the aeration tank and the purification tank are formed. Chlorination Disinfection of sewage is one of The most basic steps are wastewater treatment. Wastewater pollution due to the presence of microorganisms have biological In order to destroy the microorganisms in the sewage, it is necessary used disinfection. The simplest method of disinfection is chlorination, which is effective at the same time It is also cheap. Output pH control Wastewater from the activities are produced by human beings, mainly the interval pH between acidic and alkaline and because their discharge into the environment causes destruction and negative effects on the water environment It cannot be done, the pH must be checked before discharging the wastewater Sewage by adding open and acids, respectively Acidic and alkaline to neutral pH Changed. Discharge of neutral effluent, another problem in terms of pH they do not. In the wastewater treatment package of the inter-way complex, by adding this step, risks Wastewater discharge is reduced. Other types of purification methods biological in the wastewater treatment package of the inter-way complex Extended aeration EAAS In the sewage treatment package Intermediary complex of methods EAAS used that One of the improved methods of extensive aeration is the use of activated sludge he does. The amount of final production sludge of this treatment method is much less than other methods Therefore, this method is more popular than many other methods. In the first step of this method Wastewater treatment, the effluent enters a clarifier and then using the process Biologicals are purified. At the end of this process, the primary sludge remains. mud After entering another tank, primary sludge is treated and finally secondary sludge forms Secondary sludge a smaller amount to It has a proportion of primary sludge and must finally be removed from the system. The purification time of this method is above It takes more time than other methods, and on the other hand, it has a lower installation and installation cost. The efficiency of the wastewater treatment package of the inter-route complex with the EAAS method is high And on the other hand, it is affordable. Sometimes, to strengthen the bacteria, sugary substances are added Effluent is used to increase efficiency.
RBC biological discs rotating Biological contactors Rotary (RBC), one of the methods used in the purification package The sewerage complex is the middle of the road. This method has another name, rotating biological filter Is. This method is based on a fixed bed reactor consisting of stacks of rotating disks are placed on a horizontal shaft. Removal of microorganisms and organic matter In this method, it is done with very high efficiency. SBR Sequential Sequential Reactor Another method used in Integrated wastewater treatment package, sequential discontinuous reactor or It is SBR. This method is based on activated sludge It has been established and in the period of 60 Up to 90 minutes with oxygenation of sewage and assistance The ability to grow aerobic bacteria It detects BODs and CODs.
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MBR biological membrane reactor No MBR treatment method It is only used in many wastewater treatment packages, but also in the wastewater treatment package The intermediate complex is also used. This method is the result of mixing two biological purification methods and Membrane filtration is by microfiltration and ultrafiltration methods. Method Refining MBBR In the sewage treatment package Intermediate complex, purification method MBBR used has taken. This method or the same method as the moving bed biofilm reactor works And it has high efficiency. The space required to install this system is proportional to the systems with Other methods are less. In this method, from a series of polyethylene substrate that is used by biofilm It is covered, it is used to treat sewage. These biofilms by creating The possibility of growth of heterotrophic and autotrophic bacteria makes wastewater treatment easier. Method IFAS clearance The IFAS method is a method is in which activated sludge with consolidated growth is attached and suspended on fixed media or Suspended is used. In the integrated sewage treatment package, there is a way of this method for treatment is used If it is possible to use a larger size tank, from fixed media And if the size of the tank is small, suspended media is used in this method. The most important benefits of the package Wastewater treatment of roadside complexes Reasonable price and performance According to the standard efficiency and effectiveness Very high in wastewater treatment and in accordance with environmental standards Ability to move the package Even after installing it high speed of construction, Installation Possibility to build based on Conditions and limitations of each project Easy operation and No need for operator power No production and release of unpleasant odors in the space

Factors affecting the price of the sewage treatment package of the inter-way complex

One of the most important influencing factors in the price of the sewage treatment package for the inter-way complex is the amount of sewage production. The higher the waste water production rate, the higher the price of the sewage treatment package for the inter-way complex. After the wastewater production rate, it is possible to discharge which is important. In this way, if the number of wastewater discharges in the environment is three times a month, the price of this package is very different from the sewage treatment package that discharges it twice a month.

The quality of the incoming effluent as well as the desired quality of the outgoing effluent is also effective in the price of the sewage treatment package of the inter-way complex. That is, the issue of what kind of pollutants the inter-way complex wastewater contains and to what extent these pollutants should be removed, has an effect on the price of the inter-way complex wastewater treatment package. This limit of purification is mainly expressed by relevant organizations.

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