Water and Wastewater Treatment

Water is the prime resource essential for survival of human life on earth. All ecosystems and habitats owe their existence to water. While 67% of the planet earth is geographically covered by water, fresh water is only 2.7% of it. Industrial activates and urban growth has increased the strain on fresh water. Hence, Sustainable water management throughout the world is fast becoming a necessity with the looming crisis over water resources threatening the security and livelihood of our ecosystem. Governments across the world are making the provision for clean water to their people by allocating large scale budgets and subsidyprogrammes.

AEPL believes India require a wide range of water and wastewater treatment systems in order to tackle the above challenges. As a leader in supply of water purification and wastewater treatment systems, with a focus on water reuse and Zero Liquid Discharge, AEPL is uniquely positioned to offer complete range of integrated water and wastewater management solutions.

AEPL has a dedicated team of engineers, technicians and administrators, who have a long history of treating water supplies and wastewater effluents, and are trained in their respective fields to provide superior quality products and unmatched customer services. With our vast experience in the water industry, we can offer a wide variety of systems and solutions to combat the ever increasing pure water demand for drinking and industrial applications, and can address environmental concerns related to sewage and effluent water treatment.

The company is committed to using its collective knowledge, experience and expertise to develop products, systems and services, which come from on-going R&D of process and control, manufacturing technology and colloidal chemistry. AEPL is providing most reliable and cost effective products that meet clients' satisfaction. With offices, representative and dealers' presence in all parts of the country, AEPL can meet its clients' requirements competitively and efficiently.

Reverse Osmosis Plant

The natural phenomena of the passage of low concentrated solute towards the high concentrated through a semi permeable membrane is called Osmosis. Reversing this principle by applying pressure on the high concentrated side and passing the solute (here water) through the semi permeable synthetic membrane is called Reverse Osmosis (RO).

Knowing thequality standards,experience and sourcing capabilities allow us to bring in best-in-class products with latest technology right to the doorstep of our customers.Our range of products is suitable for potable water plants, industrial requirements, hospitals, institutions, canteens, hotels and restaurants.

The standard models are available from 250 liters of treated water per hour up to 10,000 liters per hour.We have the tailor made RO systems up to 300,000 liters per hour capacity. The recovery of these RO systems ranges from 15-70% depending on raw water quality and the quality requirement of treated water.

Softener Plant

The presence of scale forming salts of Calcium and Magnesium in water is called as hard water. Removing or replacing these salts to non-scale forming salts is called the process of softening. We employ the ion exchange method using the synthetic polystyrene resins to replace the Calcium and Magnesium salts in to non-scale forming Sodium salts, which are soft while heating.

We manufacture the softener according to clients' requirements. Few of the applications are (a) boiler feed water, (b) laundry applications in hotels and hospitals, (c) cooling tower make-up water for air conditioning and power plants, and (d) soft drinks and other drinks manufacturing plants.

The standard models are available both in FRP (fibre reinforced plastic) and MSEP(mild steel epoxy painted)from 250 liters per hour of treated soft water up to 1,000,000 liters per hour.

Demineralization Plant

Demineralization(DM) produces the water free of minerals (i.e., dissolved solids). Two types of DM plants are available commercially, i.e. two bed demineralizer and mixed bed demineralizer.

Two Bed Demineralizer

Two bed demineralizer plants comprise Cation and Anion exchange columns operating in series. The Cation column converts all dissolved solids in raw water to acids. Theseacids are then removed as the water passes through the Anion column. When exhausted, the Cation exchange resin is regenerated with acid and the anion exchange resin with alkali.

A degasser tower is incorporated between the Cation and Anion columns to remove the carbonic acid formed due to breakdown of alkalinity by Cation exchange. In degasser tower,low pressure air is introduced at the bottom of the tower, which scrubs out CO2from the water sprayed down ona column of packing in the tower.

Mixed Bed Demineralizer

Ina mixed bed plant Cation exchange resin and the strong base Anion exchange resins are mixed together. Water passing through this column comes in to contact with these materials repeatedly and is thus subject to an almost infinite number of demineralizing stages. By this method, demineralized water of extreme purityis produced, that cannot be produced by any other commercial process.The applications of these plants are where the treated water quality is critical, like high pressure boilers in power generation, pure and high pressure steam required in sugar factory and in the process of IV fluid manufacturing, etc.

AEPL has capacity to supply both two bed demineralizerandmixed bed demineralizer plants in all sizes from small portable units for laboratories to large multiple installations for power stations and fertilizers factory.

Effluent Treatment Plant

Unprecedented growth of industries especially of chemicals and allied products has resulted in degradation of environment. It has largely contributed to air, water, and noise pollution, which in turn adversely affects the human health, animals and vegetation. Each industrial effluent has different characteristics because of their process and chemicals used in the process. AEPL can economically design and supply effluent treatment plants for the following industries irrespective of the characteristics of effluent and the quantity discharged.

  • Metallurgical industries (Zinc, Lead, Copper, Aluminum and Steel)
  • Pulp and Paper
  • Pesticides and insecticides
  • Refineries
  • Fertilizers
  • Paintsand dyes
  • Leather tanning
  • Rayon and textiles
  • Basic drugs and pharmaceuticals
  • Sodium and potassium cyanide
  • Foundry
  • Storage batteries
  • Acids and alkalis
  • Plastic and synthetic rubber
  • Cement and asbestos
  • Fermentation industry
  • Electroplating industry.

Sewage Treatment Plant

Domestic wastewater from kitchen,bathroom and toilet harm the environment heavily. Particularly,chemical oxygen demand (COD), biological oxygen demand (BOD) and suspended matters present in the wastewater will kill the aquaticlife, when discharged without treatment.

AEPL has developed sewage treatment plants (STP) in packaged models as well as customary civil construction models ranging from 5 KLD up to 500 KLD.Higher capacity plants are supplied mostly with civil construction. We supply STP for residential apartments, hotels, restaurants, resorts and industries.

Other Water Treatment Systems

Fluoride Removal

Fluoride is essential for our body up a level of 1mg/l in drinking water. When its concentration goes beyond this level, it affects our body. The disease called 'fluorosis'is caused mainly due to excess fluoride in drinking water. The crippling of hands and legs, deformity in bone and joints,loss of teeth and coloring of teeth are the common causes by this disease.In southern India, the following areas are found to be having high fluoride content in the ground water

  • Dharmapuri and Krishnagiri districts of Tamilnadu.
  • Kolar,Chikkabellapur,Tumkur and Davangere districts of Karnataka.
  • Chittoor,Anadapur, Nalgonda and Kadappa districts of Andhra Pradesh.

To treat the fluorides, two methods are predominantly followed. These are,

  • Activated Alumina Process

  • The water to be treated is passed through a column of activated alumina. The fluoride is adsorbed by the media. The process goes on till the activation presents in the system. Upon exhaustion, the media is regenerated with acid and alkali, and now it is ready for further use.

  • Reverse Osmosis Method

  • During the process of RO, the fluoride salts are rejected along with other salts.Several hundred plants are working successfully across the country for removing fluoride content from water.

    Iron Removal

    The coastal belt of whole India and few places of hilly trackare affected by iron in the ground water. Iron content also affects the life of human beings, particularly the blood hemoglobin.

    Common treatment for removal of iron is the oxidation and precipitation method. The BIRM(back-washable iron removal media) media filters are very effective in removing the iron. We employ MnO2 as well as green sand to remove iron content in water.

    Arsenic Removal

    Arsenic poisoning or arsenicosis is caused by the ingestion, absorption or inhalation of dangerous levels of arsenic. Arsenic is a natural semi-metallic chemical that is found all over the world in groundwater.East India, particularly West Bengal, eastern states and northern hilly track are affected by arsenic content. Arsenic poisoning can cause major health complications if not treated, including death.

    Activated alumina process, coagulation method,and china clay adsorption method are commonly employed for removing Arsenic content from drinking water. However, RO systems give the best results in removing Arsenic.

    Domestic RO Systems

    Apart from industrial water treatment systems, AEPL also entered into supplying the domestic reverse osmosis systems and spare parts to its customers either directly or through its dealers network.