Krofta Engineering

Simple and basic concept with strong mechanical components provide efficent sludge removal and clarification of heavy and fatty effluents. Unicell dissolved air clarifier was developed at the top of the sixties and therefore the beginning of the seventies. Like most of the products of the corporate, it had been used for clarification mainly within the paper industry . The Unicell design was designed for giant water flows and a concrete tank construction. within the early 2000’s, the Unicell concept was adapted to small units with chrome steel tanks to be utilized in the food industry for heavy oil and grease removal. The clarified water extraction was simplified (the bottom clarified water recovery pipes disappeared) and therefore the surface scraper was complemented by a paddle wheel to enhance the floated sludge removal capacity. By the center of the last decade the market demand for giant sea water and water DAF clarifiers increased significantly. This led KWI to mix the historic...

The  Minicell  is the simplest and the smallest DAF clarifier. The  Central driven Clarifier  has a special drive unit that is fitted to the shaft or cage. This cage or shaft can be provided with an overload sensor if required by the client. By means of the shaft or cage, scraper arms with scraper blades are connected to the drive unit. Main Advantages:- Very Competitive price simple operation Excellent Performance with "difficult" and "fragile" sludge quality. - the sludge blanket does not move and the risk of having "sinking flocs" is negligible (the sludge is not pushed to the sludge extraction device as the spiral scoop is traveling around the sludge blanket). Three different tank heights are available(choice according to the application) Main Applications : Excess biological sludge clarification and thickening before further de-watering (for small installations) (excellent application in case of biological phosphorous removal. This reduce also the pol...

  Unicell- Dissolved Air Flotation Clarifier The simple and basic concepts with strong mechanical components provide efficient sludge removal and clarification of heavy and fatty effluents. Unicell dissolved air clarifier was developed at the top of the sixties and therefore the beginning of the seventies. Like most of the products of the corporate, it had been used for clarification mainly within the paper industry. The Unicell design was designed for giant water flows and concrete tank construction. within the early 2000s, the Unicell concept was adapted to small units with chrome steel tanks to be utilized in the food industry for heavy oil and grease removal. The clarified water extraction was simplified (the bottom clarified water recovery pipes disappeared) and therefore the surface scraper was complemented by a paddle wheel to enhance the floated sludge removal capacity. By the center of the last decade, the market demand for giant seawater and water DAF clarifiers increased...

  Unicell- Dissolved Air Flotation Clarifier Simple and basic concept with strong mechanical components provide efficent sludge removal and clarification of heavy and fatty effluents. Unicell dissolved air clarifier was developed at the top of the sixties and therefore the beginning of the seventies. Like most of the products of the corporate, it had been used for clarification mainly within the paper industry. The Unicell design was designed for giant water flows and a concrete tank construction. within the early 2000’s, the Unicell concept was adapted to small units with chrome steel tanks to be utilized in the food industry for heavy oil and grease removal. The clarified water extraction was simplified (the bottom clarified water recovery pipes disappeared) and therefore the surface scraper was complemented by a paddle wheel to enhance the floated sludge removal capacity. By the center of the last decade the market demand for giant sea water and water DAF clarifiers increased si...

  Krofta introduces State of the Art Technology: NEW DAF especially designed for Paper Industry. A unique technique, far enhanced compared to circular machines The Megacell is provided with high performance and automatically sturdy floated sludge removal device. The scraping and therefore the sludge extraction area unit separated so as to produce best fulfillment of those functions. This mix avoids the utilization of rubber gaskets usually employed in standard scrapers pushing and extracting the floated sludge. Megacell is usually designed with a cone like bottom. The device is intended for optimum potency with much no maintenance. SALIENT BENEFITS:  50-70% savings* in Civil Cost compared to Sedicell.  Higher capacity Product at Low Foot Print (Required lessor land space )  Much Lower running Power cost in comparison to Present DAF Technology;  Excellent Output performance;  Cheaper installation cost*  A very compact unit*

  Unicell- Dissolved Air Flotation Clarifier Simple and basic concept with strong mechanical components provide efficent sludge removal and clarification of heavy and fatty effluents. Unicell dissolved air clarifier was developed at the top of the sixties and therefore the beginning of the seventies. Like most of the products of the corporate, it had been used for clarification mainly within the paper industry. The Unicell design was designed for giant water flows and a concrete tank construction. within the early 2000’s, the Unicell concept was adapted to small units with chrome steel tanks to be utilized in the food industry for heavy oil and grease removal. The clarified water extraction was simplified (the bottom clarified water recovery pipes disappeared) and therefore the surface scraper was complemented by a paddle wheel to enhance the floated sludge removal capacity. By the center of the last decade the market demand for giant sea water and water DAF clarifiers increased si...

  Spray Filter Performance The degree of fractionation and/ or microstraining depends on many factors; inlet consistency, spray pressure, inlet filler content, micron opening size, and particularly fines content of the fiber fraction. The following results can be expected Coarse impurities are separated out. All the water is microstrained.The fiber fraction is retained by the cloth and can be recovered. Changes in fiber content by the KROFTA Spray Filter are minimized so that subsequent clarifiers operate under a uniform load. The KROFTA Spray Filter improves the operation of clarifiers especially floatation ones, as it aerates the effluent making it more adaptable to floatation. Measurements /Capacities TYPE Flow GPM Flow LPM Outside Dimension Overall Height 500 132 500 3’ 0” 6’ 0” 1000 264 1000 3’ 0” 6’ 0” 2000 528 2000 3’ 5” 7’ 9” 3000 790 3000 2’ 5” 8’ 2” 4500 1185 4500 6’ 8” 8’ 2” 6000 1580 6000 6’ 8” 9’ 2” 7200 2000 7570 6’ 8” 11' 9"

  Unicell- Dissolved Air Flotation Clarifier Simple and basic concept with strong mechanical components provide efficent sludge removal and clarification of heavy and fatty effluents. Unicell dissolved air clarifier was developed at the top of the sixties and therefore the beginning of the seventies. Like most of the products of the corporate, it had been used for clarification mainly within the paper industry. The Unicell design was designed for giant water flows and a concrete tank construction. within the early 2000’s, the Unicell concept was adapted to small units with chrome steel tanks to be utilized in the food industry for heavy oil and grease removal. The clarified water extraction was simplified (the bottom clarified water recovery pipes disappeared) and therefore the surface scraper was complemented by a paddle wheel to enhance the floated sludge removal capacity. By the center of the last decade the market demand for giant sea water and water DAF clarifiers increased si...

  Spray filter The degree of fractionation and/ or micros training depends on many factors; inlet consistency, spray pressure, inlet filler content, micron opening size, and particularly fines content of the fiber fraction. The following results can be expected Coarse impurities are separated out. All the water is microstrain. The fiber fraction is retained by the cloth and can be recovered. Changes in fiber content by the KROFTA Spray Filter are minimized so that subsequent clarifiers operate under a uniform load. The KROFTA Spray Filter improves the operation of clarifiers especially floatation ones, as it aerates the effluent making it more adaptable to floatation. Simple operation: few moving parts and very low rpm Simple operation: few moving parts and very low rpm Self-cleaning: built-in cleaning shower saves down-time No freshwater required: cleaning shower nozzles are an open, non-clogging type. Filtered water can be used in the shower Easy maintenance: wide access door all...

Dissolved air flotation  ( DAF ) methods are planned to get rid of suspended objects, biochemical oxygen requests, and oils and greases from a wastewater stream. This recycle stream is then joint and assorted with entering wastewater in an indoor contact cavity where the dissolved air comes out of mixture within the sort of micron-sized bubbles that attach to the contaminants. The bubbles and contaminants rise to the surface and form a floating bed of fabric that's removed by a surface skimmer into an indoor hopper for further handling Biological  Dissolved air flotation Dissolved air flotation  ( DAF ) has confirmed to be very effective for the exclusion of organic solids from wastewater streams. a number of the benefits over traditional, gravity clarification include: • Smaller footprint and more rapid implementation • Higher sludge solids content (4%TS vs. 1%TS) leading to a way lower sludge volume • Aptitude to handle bulking solids that incline to hover •...

    Various industries need to manage wastewater and remove various pollutants. One of the most effective ways to do this is by means of an air-conditioning system, which is also known as  WASTEWATER DAF . The  WASTEWATER DAF 's wastewater treatment system consists of many components and has complete information behind it. By knowing the basics of one of the best water treatment systems in the industry, you will be better able to use them in your business. The purpose of the  WASTEWATER DAF While many industries are using this system, the  WASTEWATER DAF 's wastewater treatment system is designed to remove three main types of waste from the sewage stream. These types are fixed solids, chemical oxygen demand, and fats and oils. Suspension removal is often the focus of municipalities using air-conditioning for wastewater treatment. The need for chemical oxygen in polluted water streams is the amount of dissolved oxygen present in the water that allows m...

  Spray Filter  is meant to separate and save specifically sized fibers by spraying a source stream through a cloth screen. In  Spray Filter  Water enters through the inlet pipe on rock bottom of the unit and up into a distribution header. This header contains variety of extension stems (the number of which vary counting on equipment capacity) each with a nozzle of  Spray Filter  that directs the water during a fan-shaped spray pattern towards the screen. The screen is secure to a counter-clockwise revolving drum. because the spray hits the screen, the fine fraction (or short fiber) passes through the material , and is collected and discharged out of rock bottom of the unit. The coarse fraction (or long fiber) hits the screen and drops down towards a cone shaped bottom where it's discharged out of the unit. The operating pressure requirement of the  Spray Filter  is usually between 14-18 psi. The screen is secured with two steel clamps at the high...

  Various industries need to manage wastewater and remove various pollutants. One of the most effective ways to do this is by means of an air-conditioning system, which is also known as   WASTEWATER DAF . The   WASTEWATER DAF 's wastewater treatment system consists of many components and has complete information behind it. By knowing the basics of one of the best water treatment systems in the industry, you will be better able to use them in your business. The purpose of the  WASTEWATER DAF While many industries are using this system, the  WASTEWATER DAF 's wastewater treatment system is designed to remove three main types of waste from the sewage stream. These types are fixed solids, chemical oxygen demand, and fats and oils. Suspension removal is often the focus of municipalities using air-conditioning for wastewater treatment. The need for chemical oxygen in polluted water streams is the amount of dissolved oxygen present in the water that allows microorganis...

  A simple and basic concept with solid mechanical properties provides effective sewage removal and specification of heavy and oily impurities. Unicell's melted air filter was built over sixty and as a result seventy began. Like many of the company's products, it was used for clarity especially in the paper industry. The Unicell design is designed for high water flow and the construction of concrete tanks. before the year 2000, Unicell's concept was transformed into smaller units with chrome steel tanks for use in the food industry to remove heavy oil and fuel. Specified drainage was made easier (the drainage pipes specified below disappeared) so the top slider was filled with rowing wheel to increase the ability to remove floating mud. Over the past decade the market demand for DAF's large marine and offsides has grown exponentially. This has led KWI to mix historical and up-to-date information with Unicell design and improve the concept of Unicell BF (like Big Flow). ...

  Central driven clarifier   solvent tanks constructed by mechanical means of continuous solidification induced by sedimentationA clarification is often undesirable to remove solid or solid particles suspended in liquids for clarification and / or solidification. Deep impurities, which are released from the rock at the bottom of the tank are called mud, while particles floating on top of the liquid are called a scarf in   Central driven clarifier. Preparing in advance Before water enters the precipitation, coagulation and flocculation reagents, such as polyelectrolytes and ferric sulfateare are often added. These reagents cause fine-tuned particles to form into larger and larger particles, called flocs, which are more stable and stable. this enables the separation of solids within the precision to occur accurately and quickly; Assisting within energy conservation Separating particles first using these processes can reduce the frequency of water treatment processes such as...