Seylab Zist Tehran products

Low speed mechanical aerator is a well-known and trustable machine in sewage aeration processes. Due to slow and strong movement of the turbine, this machine is quite durable and stable. As the result of driving power of electro gearbox and rotation of semi-submerged turbine, turbulence and flow turnaround is created and causes constant contact of the liquid with air and oxygenation of the sewage. Application of surface aeration: - In aerobic lagoons, ponds of waste treatment by using activated sludge way. - Inflow aeration to water treatment plants. - retarding and mixing reservoirs in industrial wastewater treatment. floating surface aerator. Low speed aerator. Surface Aerator Turbine.

Fiberglass aeration impellers manufactured by SEYLAB ZIST TEHRAN Engineering Company : • Application: for connecting electromotor gearboxes to surface aeration equipment and mechanical water and wastewater mixers. • Material of Impellers: Fiberglass or GRP / Stainless Steel The sizes of Aerator Impeller or Turbines : 400 to 3000 mm in diameter based on the order. image: aeration impellers made by TEHRAN SEYLAB ZIST Engineering Company All types of aeration turbines are designed and manufactured by TEHRAN SEYLAB ZIST Company from steel and fiberglass material in your required dimensions and designs. Surface Aerator FRP impeller, Wastewater propeller, Wastewater Aeration Rotor, Surface Aerators impeller, Surface Aerator GRP Turbine, 

Packaged wastewater treatment plants are ready packages as an immediate and economical way to purify wastewater of small communities or far centers. These units can be used for the treatment and sewage disposal in residential complexes, domiciles, hospitals, workshop sites and other similar centers. Each complete unit of the wastewater treatment package has accessories such as screening equipment, pumping system, anoxic and aeration units, settling and clarification tank, sludge digester, aeration blower and diffusers, chlorine injection pump, final filtration and switchboard with cables laying and communication pipes. Steel tanks, polyethylene and fiberglass are used as wastewater treatment plant units depending on the situation and technical and economic consideration in the design and construction of SEYLAB ZIST TEHRAN packages. Wastewater Treatment Package, Package Wastewater Treatment Plants, Package Plant Wastewater Treatments

In diffused air aeration methods, the use of air diffusers are recommended for proper transfer and injection of compressed air into water or sewage due to the production of very fine bubbles. Diffusers are of fine or coarse bubble types depending on the application and size of their (fine) pores. As smaller the air bubbles are, the higher oxygen transfer efficiency will be. Fine bubble diffusers are made of a disc with a holding frame of polypropylene, and a rubber membrane of EPDM, with very fine pores for the passing of air bubbles. In many cases, coarse-bubble diffusers are preferred due to the need to more mixing and turbulence especially in sewage equalization tanks. These diffusers have advantages of better mixing, thick sludge and sediments suspension. Coarse-bubble diffusers, mostly made of polypropylene and PVC, are offered in the form of simple plate and valve shape. Coarse bubble , Fine bubble 

Wastewater Surface Aeration / surface aerators Application of surface aeration : - In aerobic lagoons, ponds of waste treatment by using activated sludge way. - Inflow aeration to water treatment plants to remove odor, iron and manganese. - retarding and mixing reservoirs in industrial wastewater treatment • Characteristics of TEHRAN SEYLAB ZIST Aerations: - High oxygenation efficiency and more mixing due to the specific helicoids and hydrodynamic shape of the turbine blades SEYLAB ZIST TEHRAN Engineering Company is specially prepared to supply and install the equipments with the best quality and service through its successful experiences and continuous activities in the design, manufacturing of various types of surface mechanical propellers and aerator. Low speed mechanical aerator, Low Speed Aerator, floating surface aerator, Surface Aeration Turbine, surface aerator, Surface aerator fixed installation.

Pressure Sand Filter Filtration process is one of the most important and well-known methods in water and wastewater treatment and clarification. The main work of the filters is the physical treatment of water by trapping the suspended particles in the filter bed layers. The water that must be clarified, enters from the upper part of the machine and is clarified by passing from the filter bed layers and exits from the bottom part of the filter. Sand filters are capable to separate and remove impurities and particulates larger than 50 microns from water with very high efficiency. The sand filters bed is granulated from silica with 98% purity in three layers of coarse, medium and fine and, if necessary is as the surface course with a bed of anthracite.

Water Softener Water of hardness can cause many problems in industrial uses due to high sedimentation and corrosion. Sedimentation and problems caused by water of hardness become more apparent with increasing temperature. The most efficient way to remove settling ions and water hardness compounds is, using the resin softener devices. Output soft water from this machine is desirable for industrial uses, boiler feed and heating installations. Disadvantages and Problems of using Hardness Water in Industrial Uses: Reduce heat transfer efficiency and increase energy conspicuous consumption due to thick sediment layers - Creation of white spot and sediments on the surfaces of objects, component parts and factories manufactured products. The work basis of water softener devices is the use of ion-exchange process by a resins. water softener

Packaging of suspended media (Bio Ball): Ball-shaped suspended media packaging (Bio Ball) can be used to achieve the following goals: - Increasing the contact surface of air and water in cooling towers - Treatment of sticky growth of bacteria - Remove the gas and smell from the water and fix it - Nitrate and ammonia removal from fish and aquatic ponds - Contact bed in degassing towers . Air Scrubber Media, 

Water and sewage mixer: Mechanical mixers are one of the widely used industrial equipment in water and wastewater treatment units. Agitators are used to create turbulence, mechanical mixing and homogenization of liquids in the following units: - Balancing ponds for wastewater treatment and industrial effluent - Sludge digesters, anaerobic and anoxic reactors - Mixing and flocculation in water and wastewater treatment processes - Mixing various chemicals such as chlorine, lime and polyelectrolyte. Vertical mixer.