PP Aquatech Private Limited

Oxygenation and Mixing

The PP aqua Surface Aerator has the best mixing capability of any vertical shaft surface aerator. Due to the unique blade design, the impeller induces a strong axial flow pattern which ‘pumps’ oxygen-deficient water up from the tank floor and forces it out to the tank sides. This strong, deep circulation improves oxygen transfer and mixing throughout the tank. This action is superior to the surface radial flow pattern created by most other similar vertical shaft surface aerators, which provides little dissolved oxygen and mixing at depth. This advantage gives Vertex aerators efficiency gains of up to 30% in clean water tests compared to others.

High Efficiency

The efficiency of PP Aquatech is maintained for the full lifetime of the aerator, often up to 10 years. This makes their whole life cost efficiency compare favorably with other aeration technologies such as Fine Bubble Diffused Air, which always show a decline in efficiency over time and require new diffuser membranes to regain their efficiency.

We guarantee a Standard Aeration Efficiency (SAE) of 2.25 kgO2/kWh on most of our proposals; however, independent tests have shown results of up to 2.75 kgO2/kWh.

Low Reaction Forces

The design of PP Aquatech is such that both radial and axial forces are much lower than with conventional surface aerators. This has many advantages – primarily that the forces and vibration on the gearbox bearings and mounting structure are significantly lower.

Self-cleaning

The design and the shape of the blades is such that it is virtually impossible for rag or other detritus to attach to the impeller.

Low Maintenance

All maintenance items are accessible from the mounting platform, and maintenance is limited to an annual oil check (2 years with synthetic oil) and periodic checking of greasing points.

Wide Turndown

Depending on circumstances, it is possible for a single PP Aqua aerator to transfer anything from 1 to 500 kg Oh into water. Their Standard Aeration Efficiency (SAE) is near-constant over a wide range of speeds and immersion depths.

Applications

PP Aquatech can be installed in a fixed or floating configuration in virtually any tank from 2 – 6 m depth: aeration tanks, bio reactors, oxidation ditches, SBRs, lagoons, balance tanks and sludge tanks. They maintain high efficiency in a wide range of wastewater, effluent and clean water applications.

Motor

Motor Cover

Gear Reducer

• High quality wheel gear and carbon steel worm shaft

Frame, Drive Shaft Hardware

• 304 Stainless steel Mid steel to provide rust resistance and longer life

Floats

• One-piece, blow molded, leak proof polyethylene floats MS sheet FRP coating
• Strong but lightweight for easy handling

High Efficiency

The efficiency of PP Aquatech is maintained for the full lifetime of the aerator, often up to 10 years. This makes their whole life cost efficiency compare favorably with other aeration technologies such as Fine Bubble Diffused Air, which always show a decline in efficiency over time and require new diffuser membranes to regain their efficiency.

We guarantee a Standard Aeration Efficiency (SAE) of 2.25 kgO2/kWh on most of our proposals; however, independent tests have shown results of up to 2.75 kgO2/kWh.

Applications

PP Aquatech can be installed in a fixed or floating configuration in virtually any tank from 2 – 6 m depth: aeration tanks, bio reactors, oxidation ditches, SBRs, lagoons, balance tanks and sludge tanks. They maintain high efficiency in a wide range of wastewater, effluent and clean water applications.

We ( PP aquatech Pvt Ltd) is a manufacturer, supplier and  exporters of Surface aerator.

The main advantages of the low speed surface aerator are:

• Very high oxygen input in standard conditions per unit
• Stable oxygen input in time
• Nearly no maintenance
• Very high oxygen transfer efficiency

PP AQUATECH BRIDGE & SCRAPER MECHANISM 

Bridge:- Main bridge, spanning the full diameter of the tank , will be made out of truss type fabricated M.S. structures and shall have a minimum width of 1000 mm.  It shall be firmly anchored onto the RCC tank.

Two more truss type structures, at 90 degrees to the bridge on either side and having a minimum width of 300 mm will be provided to span the tank fully.  These also will be anchored to the RCC tank.  These structures help in supporting the detention hood and draft tube and also take the operating load of the drives.  The bridge will be spliced for transportation.

-  Walkway from one end of the tank to the drive center and two meters beyond shall be provided, made of 5 mm thick chequered plates.  Access ladder within the bridge to the walkway, to the impeller drive at the center and walkway around the impeller drive shall be provided.

- Hand railings, 1 meter tall, made of 32 NB / 25 NB, B class pipes will cover the full walkway.  Will be spliced for transportation.

- Scraper accessories: Drive system.

- Our A type drive head, worm gear type, with a continuous operating torque of 2,000 to 35,000 foot pounds.  Receiving sprocket (driven) on the input shaft.  Chain guard over both the drives.

- Premium make / your choice of  worm reduction gear box with simplex drive sprocket on the output end driving the driven sprocket on the drive head  through chain.  Lovejoy coupling on the input shaft.

- Crompton make / your choice of  motor coupled to the reduction gear. 

- Coupling guard.

- Scraper speed at the rake arm tip will be 2500 mm / minute.

- Lubrication points.

- Scraper accessories: Others.

- Vertical shaft top piece suspended from the drive head,  made of EN 8 / 9 round bar of with flange at the bottom. A set of heavy duty ball bearings will firmly hold the shaft and will be placed within the height of the bridge.

- An intermediate vertical shaft, also made of  solid round with both end flanges in place.

- Bottom stub shaft of heavy duty class pipe and arm support fittings.

- Two scraper arms of MS truss type construction at 180 degrees to each other.  The blades will be bolted to the arms.  26 gauge Brass /  Rubber squeezees with hold-down plates will be provided.  Will be spliced for transportation.  Two stub arms and four cross bracings will be provided.

- Sludge well scraper.

PP AQUATECH  mixing chamber where a mechanical agitator brings in intimate contact the feed solution and the solvent to carry out the transfer of solute(s). The mechanical agitator is equipped with a motor which drives a mixing and pumping turbine. This turbine draws the two phases from the settlers of the adjacent stages, mixes them, and transfers this emulsion to the associated settler. The mixer may consists of one or multiple stages of mixing tanks. Common laboratory mixers consist of a single mixing stage, whereas industrial scale copper mixers may consist of up to three mixer stages where each stage performs a combined pumping and mixing action. Use of multiple stages allows a longer reaction time and also minimizes the short circuiting of unreacted material through the mixers.

A settling chamber where the two phases separate by static decantation. Coalescence plates facilitate the separation of the emulsion into two phases (heavy and light). The two phases then pass to continuous stages by overflowing the light phase and heavy phase weirs. The height of the heavy phase weir can be adjusted in order to position the heavy/light interphase in the settling chamber based on the density of each one of the phases. The settler is a calm pool downstream of the mixer where the liquids are allowed to separate by gravity. The liquids are then removed separately from the end of the mixer.