Sanitech Engineers & Consultants Pvt. Ltd. has professionals team of expertise to deliver customized solutions of Sewage Treatment Plant. We have a variety of sewage water treatment alternatives that start from a small Pre-fabricated Plant to Large size Sewage Treatment Plant. In line with our dedicated approach towards the principle of sustainable development with appropriate technology, we offer variety of treatment alternatives in the field of sewage treatment. Further, our systems are designed taking into consideration type & size of plants, available resources in terms of capital, manpower & space with strong emphasis on making maximum possible reuse & recycle various sewage treatment alternatives offered by us.

Aerobic Sewage Treatment Plant

In Aerobic Sewage Treatment Plant Oxygen/Air is continuously supplied to the Biological (Aeration) Reactor either by direct Surface Aeration system using Impellers propelled by Pumps or Submerged Diffused Aeration system using Air Root Blowers for Air supply through diffusers. Aerobic condition leads to complete oxidation of Organic Matter to Carbon Dioxide, Water, Nitrogen etc. thus eliminating Odor problem caused due to incomplete oxidation. Also Air supply aids in uniform and efficient mixing inside the tank.

Anaerobic Sewage Treatment Plant

In Anaerobic sewage treatment plant is partially decomposed in closed Biological Reactor in absence of Air which leads to reduction of Organic Matter into Methane, Hydrogen Sulfide, Carbon Dioxide etc. It is widely used to treat wastewater sludge and organic waste because it provides volume and mass reduction of the input material to a large extent.

We are engaged in offering our clients optimum quality made Wastewater Treatment Plants, which have high demand in the market. These plants are precision engineered using high grade material in compliance with the industry set norms.

Treated Wastewater (Potable Water Reuse)

In many regions of the world, access to clean drinking water is not a matter of course. A functional supply is frequently only possible through the use of all available resources. Therefore, in some arid and semi-arid areas, the utilisation of wastewater as an additional water source represents a viable solution to existing shortages.

Naturally, there must be absolute certainty that the utilisation and consumption of this water do not involve any risks to humans. Sanitech Engineers & Consultants Pvt. Ltd. has the know-how and the technologies required to provide drinking water from municipal wastewater.

Sanitech Engineers & Consultants Pvt. Ltd. combines various process steps in sophisticated multi-barrier systems, in order to allow the production of high-quality drinking water from the outflow of municipal wastewater treatment plants.

Flocculation, sedimentation, oxidation, filtration, activated carbon filtration, membrane processes and disinfection are the most important technologies, used and combined in this connection.

With the realisation of a unique drinking water plant, Sanitech Engineers & Consultants Pvt. Ltd. has can demonstrate the feasibility of wastewater recycling up to the return of water to the drinking water network.

Municipal Wastewater Treatment

Our rivers, lakes and vital drinking water reserves are increasingly at risk due to environmental factors. Sufficient protection can only be guaranteed if wastewater is largely decontaminated. Today, technological progress is increasingly broadening the range of possibilities offered by classic environmental protection. The ecological focus is on water protection and the multiple use of wastewater. Sanitech Engineers & Consultants Pvt. Ltd. plants ensure that only clean water is discharged into rivers. In addition, through a combination of innovative treatment processes, we facilitate the reutilisation of wastewater for industrial and municipal purposes and thus the conservation of resources.

Sanitech Engineers & Consultants Pvt. Ltd. provides a range of optimised solutions extending from water softening to almost total nutrient removal. The key technologies employed include one- and two-stage activated sludge processes, membrane bioreactor technology, biofiltration and moving bed biology.

Our vast experience is continually being supplemented through intensive research work. Therefore, apart from standard technical processes, we are also able to offer highly efficient new developments.

Our advanced processes include amongst others:

• Activated Sludge Process � Biological Wastewater Treatment
• The two-stage activated sludge process for nitrogen removal
• Membrane bioreactor (MBR)
• Biofiltration for wastewater treatment
• Biological sewage treatment using a moving bed process
• Sequencing Batch Reactor
• Combined chemical-oxidative and biological effluent treatment

Industrial Wastewater Treatment

Industrial wastewater contains a diversity of impurities and therefore for this reason alone, its treatment constitutes a special task. Furthermore, the emission limits for industrial effluent are constantly being tightened up. Closed circuits and product recovery in various production processes are becoming an increasing priority among manufacturing companies. These measures represent an additional contribution to the protection of aquatic eco-systems and possess great cost-cutting potential.

Sanitech Engineers & Consultants Pvt. Ltd. can refer to long-term expertise in the industrial wastewater treatment sector. The resulting expertise is advantageously employed for the technical and economic optimisation of every subsequent facility. The treatment process may contain mechanical, biological and chemical physical process steps.

In the case of biological, anaerobic wastewater treatment we employ conventional processes and space-saving, high-performance reactors. We have completed a large number of large-scale plants on the basis of the world's most frequently used Upstream Anaerobic Sludge Blanket process. Other systems are also utilised in accordance with the characteristics of the wastewater, e.g. the activated sludge process or our high-performance Biofiltration system for less polluted water. In the case of maximum cleaning requirements (e.g. water reuse) we employ membrane processes with submerged or external membranes. The advantages are considerable savings of liquid resources and practically zero discharge of wastewater.

Following processes are used:

• Aerobic Biological Processes
• Anaerobic Biological Processes
• Chemical-Physical Processes

Sanitech Engineers & Consultants Pvt. Ltd. has realised effluent treatment concepts in the widest variety of industrial branches including aerobic and anaerobic/ aerobic systems for the food processing and the petrochemical sector, Membrane bioreactor systems for the chemical industry and wastewater reuse schemes for diverse branches.

Aerobic Biological Processes

Industrial wastewater treatment plants are designed to meet differing purification demands, which relate specifically to the effluent to be treated. As a rule, the concentrations of organic and inorganic substances in industrial wastewater are considerably higher than those found in the municipal sector.

In the biological wastewater treatment segment, Sanitech Engineers & Consultants Pvt. Ltd. can supply both aerobic (with oxygen) and anaerobic (without oxygen) processes and thus furnish optimum solutions for individual requirements. It is often the case that both processes are combined in order to achieve the highest possible purity levels in the treated wastewater.

Sanitech Engineers & Consultants Pvt. Ltd. also has technologies, which allow the cleaning of wastewater containing compounds that are difficult to degrade. Among others, the following processes are employed:

• Membrane Bioreactor (MBR)
• Activated Sludge Process
• Biofiltration
• SBR � Sequencing Batch Reactor
• Combined Chemical-Oxidative and Biological Effluent Treatment Process

Anaerobic Biological Processes

The copying of nature's fascinating capabilities as perfectly as possible and their harnessing for technical applications represents a source of innovative renewal processes. Nature shows us in an exemplary manner that the organic matter contained in water can be converted biologically into energy-rich, and thus exploitable, biogas by micro-organisms in an oxygen-free medium. Therefore, the natural anaerobic degradation process constitutes recycling at its best.

As compared with conventional aerobic treatment methods, the anaerobic process offers significant benefits:

• Very low energy consumption.
• Generation of exploitable biogas.
• Minimal sludge production.
• Minimum space requirements.
• Low nutrient requirement.
• Space-saving, emission-free and profitable

The ever-stricter stipulations confronting industry with regard to the use of the natural resource water are boosting the demand for profitable, low-cost and highly efficient wastewater treatment systems. Many industrial plants are in sensitive locations, particularly in urban areas, that call for space-saving and emission-free treatment systems.

Due to intensive development work, Sanitech Engineers & Consultants Pvt. Ltd. has a range of modern reactors available, which can be beneficially employed in accordance with wastewater characteristics. Using our long-term experience from development and full-scale technical practice, we can design and supply optimised, tailor-made concepts for every application.

Processes (cross-section):

• Upstream Anaerobic Sludge Blanket
• Anaerobic Wastewater Treatment

Anaerobic wastewater treatment is one of the oldest known purification processes. However, the sensitivity of the anaerobic biozenosis and a variety of disruptive influences delayed the efficient implementation of this technology.

Chemical-Physical Processes

In the wastewater treatment sector, biological processes deal primarily with organic impurities. By contrast, the chemical-physical process also removes inorganic substances. It is therefore frequently the case that both types of treatment are employed in tandem.

In this area, Sanitech Engineers & Consultants Pvt. Ltd. uses standard process phases such as flocculation, precipitation, filtration, oxidation and ion exchange, which are either utilised individually or in combination.

Apart from these conventional solutions, we also offer special processes, e.g.

• Combined Chemical-Oxidative and Biological Effluent Treatment process
• Electrodialysis

Sludge Treatment

Modern wastewater treatment plants are highly efficient and their discharges are virtually solids-free. Sewage sludge is created as a resultant by-product and this possesses considerable potential for use as a source of energy and nutrients. However, a prerequisite for the employment of sewage sludge is correct treatment, which above al reduces or removes the high water content (> 95%), the pollutant load, pathogen bacteria and malodorous substances.

With our range of mature processes and plants these tasks can be fulfilled easily and in addition the potential of the sludge exploited. Two classic processes are available for correct sludge treatment:

• Aerobic Sludge Digestion
• Anaerobic Sludge Digestion

Furthermore, Sanitech Engineers & Consultants Pvt. Ltd. has an innovative process for an even higher level of anaerobic sewage sludge stabilisation:

• Sludge Disintegration

Sludge treatment facilitates a reduction in CO2

The treatment of sewage sludge makes a considerable contribution to environmental protection, due to the fact that fewer landfill emissions, comprised of active greenhouse gas, escape into the atmosphere. In terms of a city with 1 million inhabitants, the sustained anaerobic stabilisation of sewage sludge provides a reduction in greenhouse gases amounting to 70,000t CO2 equivalents.

Sludge Disintegration

Sanitech Engineers & Consultants Pvt. Ltd. has been involved in the innovative Advanced Combined Chemical-Oxidative and Biological Effluent Treatment Process for an even higher level of sewage sludge stabilisation. This process supplements standard anaerobic sludge stabilisation with an additional phase and involves the injection of pre-digested sludge with ozone, which results in the further oxidative decomposition of the sludge and thus increases its suitability for biological use. This "reactivated" sludge is returned to the digesters and intensifies the degradation process. The organic dry substance is further reduced and at the same time, biogas production is increased.

The process allows for an increase in biogas yield by 40 percent as well as for further sludge hygienisation and a decrease in the sludge volume in order to save landfill space. In addition, micro-pollutants (e.g. polycyclic aromatic hydrocarbons) are degraded. This can be of relevance for agricultural use when parameters such as that for benzo(a)pyrene exceeds the statutory limits.