Sewage Treatment Plants

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Tailor-made solutions for the treatment of highly loaded industrial wastewaters

 

Every branch of industry has its own characteristics – and so does its respective industrial wastewater. By planning individual wastewater treatment plants based on our experience gained in the corresponding industry segment, we accurately develop the best solution for your requirements. Having decades of experience in the treatment of highly complex landfill leachate – the premier class of wastewater treatment – we are able to contribute high-performance technologies to the industry sector, thus reducing the chemical footprint and the water footprint.

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Treatment of industrial effluents

WEHRLE’s industrial effluent treatment and wastewater treatment plants are engineered for particularly high process stability and reliability, especially in case of highly varying wastewater streams and compositions. Industrial effluents are a typical example for this kind of wastewater. By using slim, tall reactors and compact component skids or containers only a small footprint is required. WEHRLE plants are no conventional industrial treatment plants. They are typically covered and can be installed close to residential areas as well as workplaces without any problems.

With its wide range of technologies, WEHRLE is able to design the ideal plant for industrial effluent treatment by using intelligent process combinations, including water reuse by achieving process water qualities. This allows full management of the water path and contributes to reduce environmental pollution.

Especially for applications in the industry, factors beyond the used technology are important:

• a reliable performance to cater for variations of wastewater volume and loading of industrial wastewater (e.g. caused by seasonal production or changes of product lines)
• a safe operation, even in case of critical climate conditions
• a low need of chemicals reduce the operation costs
• a modular design for simple maintenance and cost-effective upgrades
• a simple and largely automated operation to keep support costs low or to allow an easy outsourcing of the plant operation.

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Commercial Sewage Treatment Plant

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 Sewage is a suspension of water and solid waste, transported through sewer for disposal or treatment. Treatment of sewage or wastewater protects public health and prevents pollution, disease as well as hazards from sewage contaminants. Hence, sewage treatment is required.

Sewage Treatment Plant (STP) process is similar to the way that a Septic Tank works but mechanical components provide additional processes to help break down solids to produce cleaner more environmentally friendly effluents.

 FEATURES:-

• Both Civil / Packaged Model
• Design Customized
• Wide Range of Technologies – MBBR, FBBR, SBR, UASBR, DEWATTS & CONVENTIONAL
• Compact Solutions for black and grey water treatment
• Will perform satisfactorily with waste collected either by vacuum or gravity
• No risk of Odour emissions or methane production due to aerobic process. 
•  Effluent Treatment Plant:

        Effluent Treatment Plant is a process design for treating the industrial waste water for its reuse or safe disposal to the environment

FEATURES:-

• Both Civil / Packaged Model
• Design Customized
• Required less Space as compared to conventional design.
• Reduced Installation and commissioning time on site.
• Very Compact and Aesthetic
• Typical Industries: Chemical, Pharmaceuticals, Automobiles, etc., 

 Ultra Filtration:

        Ultra Filtration is filtration of solutions or suspensions under pressure through a semi permeable membrane. The Membrane has pores that allow the solvent and small molecules to pass through and the larger molecules to be retained.

FEATURES:-

• Hollow fiber construction for removal of particles, bacteria, colloidal silica and reduced turbidity
• PVDF Membrane resistant to oxidizing agents
• Filtration from outside fiber to inside of fiber
• Low Operating Cost

DM Plant:

        Demineralization is the process of removing mineral from the water.

Demineralised water is also known as Deionised water, water that has had its mineral ions removed. Mineral ions such as cations of sodium, calcium, iron, copper, etc and anions such as chloride, sulphate, nitrate, etc are common ions present in Water. 

FEATURES:-

• Fully Skid Mounted & Required Less Space
• Compact Design
• Easy to run and maintain
• Low Power Consumption
• Low Maintenance. 

 

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A Membrane bioreactor (MBR) processes are mainly used for wastewater treatment (WWT) by using microfiltration (MF) or ultrafiltration (UF) and integrating them with a biological process like a suspended growth bioreactor. The membranes are employed as a filter removing the solids which are developed during the biological process, which gives a clear and pathogen free product. A visual example can be found from the following picture of an immersed MBR (iMBR)

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Effluent treatment plant, also known as ETP is a waste water treatment process (WWTP) that is used to treat waste water. It's mostly used in industries like pharmaceuticals, textiles, and chemicals where extreme water contamination is a possibility. Effluent Treatment Plant plays a significant role in the treatment of industrial waste water as well as domestic sewage. Organic matter, inorganic matter, heavy metals, oil & grease, suspended particles, and other contaminants are treated in the wastewater treatment process of an ETP plant. Chemical treatment, biological treatment, a combination of chemical and biological treatment, and thermal treatment are the several types of wastewater treatment plants.

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Industrial waste water treatment plant
The leading specialty in thin film technology. Our technical engineering solutions are based on experiences. We manufacture system and equipments in the field of evaporation, drying and high viscosity applications.

Additional Information:

• Production Capacity: 500 kld
• Delivery Time: 30 days

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Sewage Treatment Plant Projects
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Branches:
Tamilnadu- Coimbatore,Chennai
Kerala, Karnataka.

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Sewage  Treatment Plant Small scale industries can not own individual wastewater treatment facility due to non-availability of land and skilled manpower for operation and maintenance of wastewater treatment plants. A centralized wastewater treatment facility for clusters of small scale industries is appropriate. This concept is gaining popularity in recent years. In India, various textile process operations are undertaken by individual small scale units. The wastewater generated at these units is conveyed to a common effluent treatment facility comprising of equalization, flocculation-clarification, activated sludge process, secondary clarification and finally discharge into inland surface water bodies. The wastewater from small scale cotton textile processing units was highly coloured and alkaline with average BOD and COD concentration of 205 and 790 mg l(-1), respectively. Due to the presence of several dyes, particularly reactive dyes, the biological treatment is often found less effective. Therefore, applicability of various physico-chemical treatment methods needs to be investigated in pursuit of an alternative to biological treatment of textile wastewater. A physico-chemical treatment scheme, involving chemical coagulation-sedimentation, dual media filtration, activated carbon adsorption followed by chemical oxidation was investigated in this paper. The quality of final treated wastewater in terms of BOD and COD was 18-24 and 230-240 mg l(-1), respectively through this scheme. A scheme of treatment comprising coagulation-sedimentation, dual media filtration, activated carbon, chemical oxidation may be considered as an alternative to biological treatment of textile wastewater.

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One of the major problems encountered in the textile industry is production of highly colored large volumes of wastewater. It is often not possible to predict the characteristics of textile wastewaters by using reported values in the literature because every textile industry is unique with respect to the type of production and the technology and chemicals used in production. Furthermore, the concentrations of pollutants in textile wastewaters vary according to the wastewater management practices and amount of water used in the production. In the first part of this study, wastewater characteristics of a cotton mill textile industry were determined by using the normal and log-normal II distribution functions for flow, COD, TOC, pH and colour. These parameters were measured in the effluent of the equalization tank and the statistical fits were evaluated by using the chi-Square test. It was found that flow and TOC values fitted normal distribution; COD values fitted log-normal II distribution. On the other hand, pH and colour did not fit in to aforementioned distributions. In the second part of this study, the treatment of textile wastewater by coagulation/flocculation/precipitation (CFP) was investigated. Lime, iron and aluminum salts with anionic polielectrolite combination were used as coagulants. Aluminum salts and the combination FeSO4 + lime + polielectrolite were used to remove the colour from mixed textile wastewaters, successfully. On the other hand, FeSO4 + lime + polielectrolite was more effective than aluminum salts to remove the colour from wastewater of indigo dyeing process. In the third part of this work, the removal of sulfide arising from indigo dyeing was investigated. Sulfide removal was accomplished by chemical oxidation and catalyzed air oxidation and removal efficiencies up to ninety percent were found. Chemical oxidation using sodium hypochlorite resulted in color removal too; however, dosages of hypochlorite have to be carefully monitored in order to avoid toxic effects of excess chlorine in water.