AIMS Pvt Ltd - Water Engineering Company  
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Sewage Treatment Plants

The importance of having suitable treatment facilities for sewage has gained tremendous ground in the last 6 years, statutory compliance requirements, economic factors, disposal problems, self-regulatory mechanisms of organizations, environmental policies of organizations etc... have given this field its long-due importance. AIMS has a tremendous edge over most other solution providers. We have not one, but two types of STP solutions to offer to our customers – Electrolytic and Conventional.

•  Many wastewater contaminants are held in solution due primarily to electrical charges.  Bacteria, algae, oils, clays, carbon black, silica, phosphate, nickel, lead, chromate and other irons, are only some examples.  Neutralization of these charges and the subsequent precipitation of these contaminants can be achieved either by chemical or by electrochemical means.
•  Electro coagulation, the passing of the electrical current through water, has proven very effective in the removal of contaminants from water. Electro-coagulation systems have been in existence for many years using a variety of anode and cathode geometries, such as plates, balls, wire mesh, rods and tubes.
• Although the electro-coagulation mechanism resembles the chemical coagulation – the cationic species being responsible for the neutralization of surface charges – in many ways it is very different.
• Electro-coagulation is a process of de-stablishing suspended, emulsified or dissolved contaminants in an aqueous medium by introducing electrical DC current into the medium. The electrical current provides the electromotive force causing the chemical reactions.
• Several distinct electrochemical processes occur during the electro-coagulation process independently.
• In today’s environment, chemical addition is becoming less acceptable due to more stringent regulations.
• Solid residues are classified as hazardous and treatment levels are more difficult to achieve. Lower operating cost, higher flow rates and better knowledge of the process have moved electro-coagulation to the forefront of water treatment technologies.
What EADOx (Electro-coagulation process) is
•  EADOx (EC) is cheaper than conventional system when the cost of STP – (plant and machinery + Civil) is compared
•  EADOx (EC) occupies least space among all technologies
•  EADOx (EC) is "smell free" as it does not generate obnoxious gases
•  EADOx (EC) is "Noise-free". It is a silent process
•  EADOx (EC) is "area – free". It requires less civil works and the units are modular and can be kept anywhere –under ground, above ground, basement, terrace.....
•  EADOx (EC) is "quantity-free". All biological systems fail when they need to operate at lesser than design loads-say at30% of load. EADOx can operate at ANY LOAD
•  EADOx (EC) is modular. Based on needs, customers can add additional trains of EADOx.
•  EADOx (EC) has been running for MORE THAN 7 Years in more than 100+installations in India.
•  EADOx (EC) is available for our customers, from 10.0M3/day (EADOx for a house) to 1000 M3/day (1MLD) plant.

  Raw Sewage Water      Treated Water

EADOx Models
AIMS has 3 models in the Electro-cogulation (EADOx) process to meet the requirements of clients they are
•  Eco
•  Excell
•  Super
Advantages of EADOx
•  A Chemical free and non Biological Process.
•  Eliminates Procurement, Transportation, Storage, Preparations, And Use Of Hazardous And Expensive Chemicals.
•  High Contaminant Removal.
•  Reduces Dependence On External Source For Water Supply for various uses.
•  Improves Health of Water Body where Treated Water is discharged, reducing pollution & making it Eco Friendly.
•  Saves Water, Energy and Chemicals.
•  Far less Skill Required in Operation and Maintenance.
•  For less Moving Parts, reducing Plant Down Time.
•  Needs Less Floor Space with Small Foot Print.
•  Noiseless Operation.
•  Low Capital, Operating And Life Cycle Cost.
•  Better Performance to Cost Ratio.
•  Does not generate green house gases.
Submerged Aerobic Fixed Film [SAFF]
•  SAFF process is an attached growth process
•  SAFF is "safe". It is time tested, reliable and one of the very few biological systems wherein control of STP Performance is within the manageable range.
•  SAFF provides relatively clear treated water with consistent outlet BOD
•  SAFF generates lesser bacterial sloughing and does not require extensive sludge management systems
•  SAFF is the biological process alternative to FBR(Fluidized Bed Reactor), RBC (Rotating Biological Contactors) and other such attached growth processes
SBR (Sequencing Batch Reactor)
•  Sequencing batch reactors (SBR) are Industrial processing tanks for the treatment of wastewater. SBR reactor treat waste water such as sewage or output from anaerobic digesters or mechanical biological treatment facilities in batches.
•  Oxygen is bubbled through the waste water to reduce biochemical oxygen demand (BOD) and chemical oxygen demand (COD) to make suitable for discharge into sewers or for use on land.
•  While there are several configurations of SBRs the basic process is similar. The installation consists of at least two identically equipped tanks with a common inlet, Which can be switched between them.
•  The tanks gave a "flow through" system, with raw wastewater (influent) coming in at one end and treated water (effluent) flowing out the other.  While one tank is in settle/decent mode the other is aerating and filling. At the inlet is a section of the tank known as the bio-selector.  This consists of a series of walls of baffles which direct the flow either from side to side of the tank or under and over consecutive baffles.
•  This helps to mix the incoming Influent and the returned activated sludge, beginning the biological digestion process before the liquor enters the main part of the tank.
FBBR (Fludised Bed Bio-Reactor)
•  AIMS developed the in-house state of the art Fluidised Bed Bio-reactor AIMS FBBR which can be used for any type of process wastewater and municipal wastewater achieving high efficiency.
•  It offers features like, quick start up, self cleaning, fully automatic once in operation, automatic sludge separation, and "mess free" robust operation with central up-front control, systems for both sewage and industrial wastewater.
The heart of the Fluidized Bed Bio Reactor (FBBR) technology is a proprietary media and a unique air distribution system (ADS). This media provides a large protected surface area for biological attached-growth. In the FBBR tanks and reactors, the media is subjected to an aeration process for maximum oxygen and mass transfer. The result is a very high rate of Biochemical Oxygen Demand (BOD) reduction per volume. The high density of attached living biomass makes the process much more resistant to toxic shock, sludge bulking, and other problems that can plague pure suspended growth systems. AIMS FBBR technology allows for biological treatment in much less time and space required than for conventional bio-treatment systems currently utilized.

Air generated from air blower is diffused into the bottom of the reactor vessel. The oxygen supply is automatically adjusted to maintain the proper dissolved oxygen level in the vessel. A high concentration of biomass develops because of the large media surface area, abundant oxygen and optimized mass transfer conditions. Excess biomass is automatically sheared at the discharge point for removal.

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