We are Key Players in providing Turnkey project solutions for all Water, Wastewater & Air Pollution Control Measures. All our designs, systems & execution are top notch and in line with the CPCB & SPCB guidelines.
We have a Technological Understanding with Hi Clear Products, Bangkok which has routed its technology from Hitachi, Japan for providing optimum solutions for the Water & Wastewater treatment in Indian Industries at an affordable cost.
We are also into EPC Contracts by doing detailed Engineering (Design), Procurement and Construction to deliver a functioning facility to our customers.
We design, Manufacture, Supply and Commission the ETP, STP, WTP, RO, ZLD & Evaporator Plants in line with the Expectation of Customers and Satutory Authorities.
We supply Online Monitoring Equipment with TNPCB Approved Software for measuring AAQM (Ambient Air Quality Monitoring), Stack Monitoring & Water Related Parameters.
We are offering Treatment plant with the following types of Principal Technologies;
MBBR – Moving Bed Bio Reactor
ASP – Activated Sludge process
MBR – Membrane Bio Reactor
We are catering to all types of Industrial Sectors, Construction & Infrastructure Projects and Municipal Sewage & Waste Water Treatment Plants;
We are providing Air Pollution control measures like Wet Scrubber, dry Scrubber, dust collector, Ducting system for all Industrial and commercial Applications.
A dry or semi-dry scrubbing system, unlike the wet scrubber, does not saturate the flue gas stream that is being treated with moisture. In some cases no moisture is added, while in others only the amount of moisture that can be evaporated in the flue gas without condensing is added. Therefore, dry scrubbers generally do not have a stack steam plume or wastewater handling/disposal requirements. Dry scrubbing systems are used to remove acid gases (such as SO2 and HCl) primarily from combustion sources.
There are a number of dry type scrubbing system designs. However, all consist of two main sections or devices: a device to introduce the acid gas sorbent material into the gas stream and a particulate matter control device to remove reaction products, excess sorbent material as well as any particulate matter already in the flue gas.
Dry scrubbing systems can be categorized as dry sorbent injectors (DSIs) or as spray dryer absorbers (SDAs). Spray dryer absorbers are also called semi-dry scrubbers or spray dryers.
Dry scrubbing systems are often used for the removal of odorous and corrosive gases from wastewater treatment plant operations. The medium used is typically an activated alumina compound impregnated with materials to handle specific gases such as hydrogen sulfide. Media used can be mixed together to offer a wide range of removal for other odorous compounds such as methyl mercaptans, aldehydes, volatile organic compounds, dimethyl sulfide, and dimethyl disulfide.
Dry sorbent injection involves the addition of an alkaline material (usually hydrated lime, soda ash, or sodium bicarbonate) into the gas stream to react with the acid gases. The sorbent can be injected directly into several different locations: the combustion process, the flue gas duct (ahead of the particulate control device), or an open reaction chamber (if one exists). The acid gases react with the alkaline sorbents to form solid salts which are removed in the particulate control device. These simple systems can achieve only limited acid gas (SO2 and HCl) removal efficiencies. Higher collection efficiencies can be achieved by increasing the flue gas humidity (i.e., cooling using water spray). These devices have been used on medical waste incinerators and a few municipal waste combustors.
In spray dryer absorbers, the flue gases are introduced into an absorbing tower (dryer) where the gases are contacted with a finely atomized alkaline slurry. Acid gases are absorbed by the slurry mixture and react to form solid salts which are removed by the particulate control device. The heat of the flue gas is used to evaporate all the water droplets, leaving a non-saturated flue gas to exit the absorber tower. Spray dryers are capable of achieving high (80+%) acid gas removal efficiencies. These devices have been used on industrial and utility boilers and municipal waste incinerators.
Our treatment options are provided with Physical, Chemical & Biological treatment mechanisms comprising of Aerobic or Anaerobic digestion methodologies which ensures high efficiency & easy handling of the treatment system.
We have been providing solutions to all Trade effluent generated from various industries like
Textile Dyeing & Washing units
Chemical & Pharmaceutical
Food, Poultry & Dairy
We are into the Engineering, Design, Erection & Commissioning of Water Treatment Plants (WTP) which find various applications in Domestic as well as Industrial sectors. Following Systems & Technologies are provided for WTP;
Reverse Osmosis (RO)
Demineralised (DM) Water plants
Filtration units like Pressure Sand Filter (PSF) & Activated Carbon Filter (ACF)
Evaporation refers to the process of heating liquid to the boiling point to remove water as vapour.
Principle of operation :
The driving force for heat transfer is the difference in temperature between the steam in the coils and the product in the pan. The steam is produced in large boilers, generally tube and chest heat exchangers. The steam temperature is a function of the steam pressure. Water boils at 100° C at 1 atm., but at other pressures the boiling point changes. At its boiling point, the steam condenses in the coils and gives up its latent heat. If the steam temperature is too high, burn-on/fouling increases so there are limits to how high steam temperatures can go. The product is also at its boiling point. The boiling point can be elevated with an increase in solute concentration. This boiling point elevation works on the same principles as freezing point depression.
Operating design :
Because milk is heat sensitive, heat damage can be minimized by evaporation under vacuum to reduce the boiling point. The basic components of this process consist of :
- vapour separator
The heat exchanger is enclosed in a large chamber and transfers heat from the heating medium, usually low pressure steam, to the product usually via indirect contact surfaces. The vacuum keeps the product temperature low and the difference in temperatures high. The vapour separator removes entrained solids from the vapours, channelling solids back to the heat exchanger and the vapours out to the condenser. It is sometimes a part of the actual heat exchanger, especially in older vacuum pans, but more likely a separate unit in newer installations. The condenser condenses the vapours from inside the heat exchanger and may act as the vacuum source.
Types of single effect evaporators:
- Batch Pan
- Rising film
- Falling film
- Plate evaporators
- Scraped surface
Batch pan evaporators are the simplest and oldest. They consist of spherical shaped, steam jacketed vessels. The heat transfer per unit volume is small requiring long residence times. The heating is due only to natural convection, therefore, the heat transfer characteristics are poor. Batch plants are of historical significance; modern evaporation plants are far-removed from this basic idea. The vapours are a tremendous source of low pressure steam and must be reused.
Rising Film evaporators consist of a heat exchanger isolated from the vapour separator. The heat exchanger, or calandria, consists of 10 to 15 meter long tubes in a tube chest which is heated with steam. The liquid rises by percolation from the vapours formed near the bottom of the heating tubes. The thin liquid film moves rapidly upwards. The product may be recycled if necessary to arrive at the desired final concentration. This development of this type of modern evaporator has given way to the falling film evaporator.
The Falling Film evaporators are the most widely used in the food industry. They are similar in components to the rising film type except that the thin liquid film moves downward under gravity in the tubes. A uniform film distribution at the feed inlet is much more difficult to obtain. This is the reason why this development came slowly and it is only within the last decade that falling film has superceded all other designs. Specially designed nozzles or spray distributors at the feed inlet permit it to handle more viscous products. The residence time is 20-30 sec. as opposed to 3-4 min. in the rising film type. The vapour separator is at the bottom which decreases the product hold-up during shut down. The tubes are 8-12 meters long and 30-50 mm in diameter.
Two or more evaporator units can be run in sequence to produce a multiple effect evaporator (shown on the right). Each effect would consist a heat transfer surface, a vapour separator, as well as a vacuum source and a condenser. The vapours from the preceding effect are used as the heat source in the next effect. There are two advantages to multiple effect evaporators:
Economy - they evaporate more water per kg steam by re-using vapours as heat sources in subsequent effects
Improve heat transfer - due to the viscous effects of the products as they become more concentrated
Each effect operates at a lower pressure and temperature than the effect preceding it so as to maintain a temperature difference and continue the evaporation procedure. The vapours are removed from the preceding effect at the boiling temperature of the product at that effect so that no temperature difference would exist if the vacuum were not increased. The operating costs of evaporation are relative to the number of effects and the temperature at which they operate. The boiling milk creates vapours which can be recompressed for high steam economy. This can be done by adding energy to the vapour in the form of a steam jet, thermo compression or by a mechanical compressor, mechanical vapour recompression.
Pollucare is among the prime in offering solutions for Total recycle & Zero Liquid discharge plants. We are manufacturers and integrators of the entire ZLD system which offers;
Effluent Treatment Plant (ETP)
Ultra Filtration (UF)
Reverse Osmosis (RO)
Multiple Effect Evaporator (MEE)
Agitated Thin Film Drier (ATFD)
We have proven expertise in offering Reject Management System, where the final RO Reject is treated through Multiple Effect Evaporator & Agitated Thin Film Drier, hence offering Water Intensive Production units a boon by supplying their daily water requirements for process utilization.
We are offering perennial solutions with our ZLD Schemes predominantly for Textiles Dyeing units & Automobiles industries.
We are providing Organic waste Converter (OWC) machine for the treatment and recycling of solid and liquid refuse material for residential and industrial waste. It will convert Biodegradable waste to nutrient rich manure for gardening. The converter is one of the "green technologies" available today for waste treatment.
1. Solid organic wastes 300kgs along with 250Ml of Microbion bacterial culture.
2. The Microbion Bacteria culture is a combination of aerobic organic waste composting micro Organism specifically developed for Composting organic waste in higher temperature around 40-60%C as above than the ambient temperature outside.
3. As the waste is being loaded the process goes on like this where the air blowers blows the air in to the vessel and increase the level of oxygen inside the vessel to activate the action of bacteria present inside. As the bacteria break the complex organic inputs to simple molecules, this process raise the temperature inside the vessel more than the ambient temperature.
4. The designed mixer system starts to run and provide uniform aeration to all the waste materials present inside the vessel, which helps to maintain equilibrium in the process of composting. Then the air blower provides Positive and Negative pressure to waste materials
5. Present inside the vessel for every hour as programmed. Thus the above process helps as to maintaining and ensure the required temperature to be present inside and accelerate the process of composting with odour free ambiance.
6. The Mixing process works only during this aeration period. The gases produced inside the vessel during the composting process will be directed by the blower into an air scrubbing unit.
7. The air scrubbing unit will remove all the gases and releases them back into the atmosphere. During the early period of composting, the hydrolysis process of composting will result in discharge of hydrolysis water from the waste.
8. This liquid will be dripping through a vent at the bottom of the vessel and can be stored and used as fertilizer liquid.
9. The process of composting will take a minimum period of 21 days. Only after 21 days the compost from the vessel can be unloaded through the bottom door and can be used as a bio fertilizer after natural curing process.