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Sanitary wastewater treatment package

Sanitary wastewater treatment package

Sanitary and human wastewater treatment package is of great importance due to the negative impact of organic matter and pollutants in wastewater on the environment and the spread of infectious diseases. So that it is one of the main equipment for wastewater treatment in residential environments, camps, and office environments, etc. Haft Industrial Group is one of the most experienced companies in the design, production, and manufacture of sanitary and human wastewater treatment packages, which has presented several projects in this field using the latest technology in the world and international standards. In the following, we will provide a comprehensive guide about the specifications of the prefabricated sanitary wastewater treatment package, the standards used in the implementation of these projects, and the price of the sanitary wastewater treatment package.

What is a sanitary wastewater treatment package?

In recent years, there has been a growing tendency to use prefabricated water and wastewater treatment plants in the form of portable packages, especially for small communities such as rural areas, camps, workshop sites, and military units. By producing prefabricated treatment plants (sanitary wastewater treatment package) in the form of ready-made units, in addition to a significant reduction in costs and time required, it is possible to transport and move them in the form of standard containers.

The use of these prefabricated units is recommended as a cost-effective and safe solution in wastewater treatment of small communities and solving environmental problems of urban and industrial polluting units.

The main reason for designing and constructing a sanitary and human wastewater treatment package is to prevent the spread of various infectious diseases and the entry of harmful organic matter into the environment in places that are not connected to the central wastewater networks. For example, in hospital units or military and relief camps, and even residential complexes, this equipment can be used to treat human and sanitary wastewater. Contaminated and pathogenic wastewaters after being directed to the sanitary wastewater treatment system and during various stages of treatment to a clear, odorless, and suspended solids-free effluent, after disinfection with chlorine or ozone compounds in accordance with environmental standards can be disposed of Surface and groundwater or use in periodic irrigation of green space.

Sanitary wastewater treatment method

The presence of organic matter, bacteria, and detergents, etc. in the wastewater of residential and office environments causes two types of wastewater to be created. Gray water is water created from the washing process and sewage is water from toilets. These two groups each have specific characteristics and the pollutants in them are different. The combination of these two groups ultimately leads to the creation of human and sanitary wastewater, whose infiltration into the ground is the source of many infectious diseases and environmental problems. Therefore, in the design and production of a sanitary wastewater treatment package, a set of methods for removing various contaminants from wastewater is considered. Among the methods used in the package of human and sanitary wastewater treatment can be mentioned the following:

Physical treatment of sanitary wastewater

One of the first steps in designing a sanitary wastewater treatment package is to use physical methods to remove contaminants. The set of activities performed in this step is garbage collection and removal of solids in the sewage. At this stage, organic matter and chemical contaminants cannot be removed.

Chemical treatment of human wastewater

In order to remove many contaminants in the wastewater, it is necessary to inject various chemicals into the wastewater. For example, in this step, chlorination, ozone gas injection, aeration, and clarification are done with different materials. One of the most important things happening at this stage is to remove colloidal particles by injecting coagulants, which will have a great effect on water clarification.

Human and sanitary wastewater treatment by biological methods

Another very important step in the sanitary and human wastewater treatment package is the use of aerobic and anaerobic processes. The activated sludge process is carried out by deep aeration with suspended culture or constant growth by aerobic bacteria. Wastewater treatment efficiency is about 95% of the removal of significant pollutants such as BOD, COD, and TSS, which is possible if additional anaerobic and anoxic reactors are added for additional wastewater treatment. Due to the fact that the conventional activated sludge method has disadvantages such as the need for a sludge treatment unit, so for packages, the extensive activated sludge method is used.

Sanitary wastewater treatment with extensive aerated activated sludge (EASS) method

Extended Aeration is the most common method of activated sludge treatment in the world, which is widely used to treat wastewater and effluents of small communities. In this method, microbes in sewage and effluent are usually exposed to aerobic conditions for 18 to 30 hours and reduce the amount of organic pollution. Because biological masses (MLSS) are in contact with oxygen for a relatively long time, the excess sludge is also very small.

In bioremediation, all the sludge produced by the settling tank is returned to the aeration tank by the extensive aeration method. Human wastewater and effluent treatment packages that are designed with extensive aeration method, if properly managed, in addition to excellent wastewater treatment, will usually work without odor and without problems.

The general treatment process is that the wastewater enters the pumping station from the sewage network and from there is directed to the aeration tank. It is deep aeration and the air needed to supply the oxygen needed by the aerobic bacteria is supplied by the blower and the air is distributed throughout the surface by the nozzle. These nozzles also perform the mixing operation. After decomposition, the wastewater enters the sedimentation section, and the effluent is collected by the V-notched and goes to the chlorination section and part of the deposited sludge is returned to the aeration section and the other part is transferred to the sludge tank section.

Components of human and sanitary wastewater treatment package

Depending on the type of wastewater and the place of use of this package, different sections are considered for it. The set of packages produced by Haft Industrial Group has several accessories, the most important of which are:

Each complete wastewater treatment unit has the necessary accessories such as garbage collection equipment, pumping system, aeration blower, clarifier, sludge digester, disinfection tank, and electrical panel along with cabling and communication pipes.

Package tanks are made of carbon steel sheets and profiles and are protected against corrosion by primers and epoxy coatings. Some of the tanks intended for this package, which are mostly used in low-capacity environments, are made of polyethylene and fiberglass, which act as a wastewater treatment reactor.

Design of wastewater treatment package

Haft Industrial Group has considered several important principles and standards in designing the sanitary and human wastewater treatment package and based on this, unique features can be seen in its products. In designing and producing sanitary and human wastewater treatment packages in Haft industrial complex, four important parts have been considered, which are:

·        Ventilation pool

·        Secondary sedimentation pool

·        Sludge digester

·        Chlorination section

Aeration pool: Aeration in this method is in the form of deep aeration (using diffusers). In this section, biodegradation of incoming wastewater takes place. Because it is odorless, the aerobic method is usually used.

Secondary sedimentation pool: By decomposing the wastewater, the sludge produced by the aeration section is deposited in this part and part of the deposited sludge is transferred to the aeration part and the rest is transferred to the sludge tank so that the sludge is disposed of after digestion. The output of this section is transferred to the chlorination section by the V-notched located in the upper part.

Sludge digestion: The sludge from the secondary sedimentation is stabilized and disposed of in this part.

Chlorination: To remove bacteria and harmful contaminants remaining in the wastewater, chlorination is done to increase the quality of wastewater.

Construction of the sanitary and human wastewater treatment package

Haft Industrial Group is one of the largest manufacturers of sanitary and industrial wastewater treatment packages, which has more than 30 years of experience in the production and manufacture of wastewater treatment packages and industrial water and wastewater treatment equipment in general. Over the years of activity in this field, this group has succeeded in implementing major domestic and international projects. Adherence to international standards in the design and construction of sanitary wastewater treatment packages and high diversity in products and their unique design based on the type of order under the supervision of experienced engineers is one of the main features of Haft Industrial Group products. The experts of this collection are ready to provide the necessary advice and guidance before purchasing the sanitary wastewater treatment package.

Price of sanitary wastewater treatment package

Packages produced in Haft Industrial Group have several features according to the conditions of the installation site. Therefore, the price of the sanitary and human wastewater treatment package is not the same and is determined based on the capacity of the tanks, capabilities, materials used in different sectors, and so on. To inquire about the price of the sanitary and human wastewater treatment package, you can use the communication channels mentioned at the bottom of the page.

Application of prefabricated sanitary waste package

Wastewater produced in different environments is completely different in terms of organic matter and pollutants in them. As a result, the need to treat them in some environments is necessary and the only way to prevent harm to humans and the environment. The prefabricated sanitary wastewater treatment package is mostly used in situations where it is not possible to connect to the central municipal wastewater, and the type of pollutants in them are completely harmful. Accordingly, the main application of human and sanitary wastewater treatment package is:

·        Military and training camps

·        Residential settlements that do not have access to central sewage

·        Hospitals and treatment clinics (hospital wastewater treatment package)

·        Large industrial factories near rivers and lakes

·        Leisure centers, hotels, airports, travel terminals, and so on

Advantages of using human and sanitary wastewater package

As mentioned, the products of water and wastewater treatment of Haft Industrial Group have been used in various industrial, military and residential environments. The main reason is the positive and unique advantages and features that are considered in this group of sanitary wastewater treatment of this group. The most important advantages of using this package are:

·        Including the necessary efficiency in the treatment of various wastewaters based on its proper design

·        Having all the units and systems required for treatment and not needing any accessories to perform treatment operations

·        Occupy little space and the possibility of dimensional change based on the conditions of the installation site

·        Ability to transport from the manufacturing workshop to the package installation site

·        High speed in construction, installation, and commissioning of the sanitary wastewater treatment package

·        Upgradeability due to changes in environmental conditions and treatment plant

·        Low energy consumption

·        Requires little space (due to special design)

Implementation of projects for the production of sanitary wastewater treatment packages

Due to the high history and experience in Haft Industrial Group, this complex has presented large projects for military and administrative organizations and residential towns, including the following options:

·        Phase 12 of Assaluyeh residential area

·        13-hectare dock in Shalamcheh

·        Baku Caspian Fish Company

·        Iran Khodro and Iran Khodro Diesel factories

·        Pakshoma Company

·        Khatam Al-Anbia Camp

·        Madain Hospital of Tehran

·        Sapco Company

·        Kashan Samyar Automotive

·        Dar Al-Tawhid Hospital

In order to register the order and communicate with Haft Industrial Group and receive information about the price of the sanitary wastewater treatment package and other products of this collection, you can use the communication channels mentioned at the bottom of the page.

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Abous Us

Asayesh Afza Imen Company started its activity in the 70s with the aim of providing engineering consulting services in the construction and operation of water and wastewater treatment systems. This group operates by taking possession of the world’s technical knowledge and relying on new engineering technologies in the field of design, construction, installation and commissioning of water (industrial, domestic, swimming pool) and sewage systems.

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