Krofta Engineering

DAF water treatment  plants aim to eliminate SS (suspended solids), BOD (biochemical oxygen demand), oils, and greases from a wastewater stream. Impurities are eradicated through the usage of dissolved air in a water solution manufactured by inserting air under pressure into a recycle stream of clarified DAF effluent. DAF delivers the desirable energy for adequate flotation in the form of exceptionally fine air bubbles which come to be attached to the suspended solids to be eliminated. The magnetism between the air bubbles and suspended particles is the outcome of adsorption forces that are functional characteristics of the broken particle surface or physical entangling in the particle. This attachment of bubbles to the suspended particles decreases the density of the suspended particle causing in amplified buoyancy, thus achieving adequate flotation. Chemical conditioning is every so often utilized to escalate the effectiveness of the dissolved air flotation procedure. Contaminan...

Seafood Wastewater industry  operations are often very high in Biochemical Oxygen Demand (BOD), Fat, Oil and Grease (FOG), and nitrogen content. BOD springs mainly from the butchering process and from general cleaning and nitrogen originates predominantly from the blood within the wastewater stream. it's difficult to generalize the magnitude  of the matter caused by these wastewater streams because the impact depends on the strength of the affluent, the speed of discharge, and therefore the assimilatory capacity of the receiving water body. Nevertheless, key pollution parameters must be taken under consideration when determining the characteristics of wastewater and evaluating the efficiency of a  seafood wastewater treatment  system.    This chapter discusses the parameters involved in the characterization of seafood wastewater and presents pre-treatment and the first treatment for seafood wastewater, which are the only operations to scale back contaminant...

  corrugated and tilted plate separators  (CTI)   or   tilted plate separators  (TPI)  are widely utilized in separating free oil in contaminated water or solid fatty oil treatment in oily Water systems. The basic principle of differentiating gravity between phases (liquid-liquid or solid-liquid) is employed by OWS by dividing the two categories of corrugated and tilted plate separators  is therefore clear that the phase with the highest density will remain and with the low density floating above the liquid. In OWS, the performance of this method is subject to various factors such as quantitative variation, viscosity, intermediate material, temperature, turbulence, type of impurities, etc. The  corrugated and tilted plate separators  when wont to separate liquid fluids - liquids (especially the removal of free oil from oily water treatment) is named a  tilted plate separator   or  corrugated and tilted plate separators . Any se...

  Pulp and Paper industries comprises of the industries that use wood as raw material and produce pulp, paper, paperboard and other cellulose-based products. Manufacturing process The Pulp is fed to a paper machine where it is formed as a paper web and the water is removed from it by pressing and drying, which is very much convenient when compared to making paper with hands in which a blotter sheet is used instead and drying it involved using air or heat to remove the water. What is Pulp? Pulp is a clean, wood-based, renewable and bio degradable raw material.it can be used to produce paper, tissue, board, and specialty paper- making them truly sustainable bioproducts. Paper Packaging Industry Packaging is the planning, creating, manufacturing, wrapping, boxing, or bottling of goods for consumer, industrial, and military markets. The packaging industry, in fact, plays a role in nearly all of the industries and manufacturing establishments. The Packaging Industry in India is segmente...

The optimal performance of the   Oil Water Separator   depends  on the knowledge of certain factors  like  design, operation, bilge management, maintenance, etc. In this article, we shall discuss  the varied  operational factors influencing the performance of the   Oil Water Separator . Operational Factors Correct operational knowledge is required for all machinery on ships to run properly  and therefore the  Oil Water Separator  is not any  exception. Marine engineers work with  differing types  of  Oil Water Separators  throughout their sea career  and every  type has its own unique features. Equipment-specific knowledge  is important  for  the right  operation of the Oil Water Separator  and may  be learned from the operational manual on board. However, generic knowledge  is additionally  required  because the  basic  working rule  is a...

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...

The production of leather goods, leather goods, leather sheets, and wool produces a wide range of products, composite waste, high amounts of wastewater containing in contrast to most impurities and emissions. The uncontrolled issue of wastewater runoff from natural cans increases the health risks of citizens and pollution. Materials used from new skin care products, which produce wet greens, skin coverings, or finished skin contain trivalent chromium mixtures and sulphides in many cases. Biological and other materials are responsible for higher BOD and COD values  and represent a greater burden of pollution, resulting in technological problems, sophisticated equipment, and higher costs associated with pollution treatment. There are cases where the genital skin uses all the contaminated water treatment measures described below on site. In some cases genital skin can only be used (on-site) for pre-surgical treatment or pre-initiation treatment in the neighborhood or there is no minim...

  We all know the old saying about how oil and water don’t mix. In the wastewater treatment industry, however, it’s not so easy to divide these two dissimilar substances. In fact, removing oil from wastewater during processing requires the use of specific equipment. So, what is the problem with oil? Why does it need to be separated from water? Simply put, it poses an environmental hazard. Oils found in wastewater include not only the cooking oils and grease that homes, restaurants, and other commercial activities wash down the drain, but also petroleum and other hazardous products. These disrupt ecological systems and are harmful to plants, animals, and us humans. Of course, there are several equations and formulae that are important to incorporate when it comes to evaluating the appropriate size or style of oil water separator a certain application calls for. But the one to keep in mind is: Oil + Solids + Time = SLUDGE Simply put, Krofta’s oil water separator does just w...

  Vietnam is a leading producer and exporter of a spread of agricultural products including rice, fruits, and vegetables, catfish, cashews, coffee, pepper. in the meantime, the country imports a great amount of agricultural and food products to satisfy the growing demand for both human and animal consumption. Vietnam has become a food processing hub meeting the high demand for processed food both for international and native markets. The Canned Seafood and agriculture products that shipped overseas dominate the industry. The food processing sector contributes 15% of the GDP and accounts for 40% of Vietnam’s export. Till 2025 Vietnam has decided to follow a strategy to prioritize the food processing sector for economic development. The role of Krofta Engineering in the Food industry For the Vietnam Economy. ​The size of the Food industry is anticipated to succeed in USD 65.03 billion by 2024 growing at a CAGR of 13.05% during the forecast period (2019 - 2024). An Entire analysis of ...

The "KROFTA" SUPERCELL has a distinct edge over other systems when the sludge or water is recycled to the process and where the type of wastewater varies. For Pulp and Paper Industry the small volume and short retention time are extremely important, where the supercell is used as a save-all and in the drinking process. The most up-to-date clarifier based on this principle has been successfully used since 1973 for fiber recovery in paper mills and for a variety of solid/liquid separation processes. Worldwide Installation of more than 3,500 supercells and installation of over 300 units in India alone, speak for the reliance placed by reputed industries and municipalities on the efficiency of Krofta equipment. The Concept of dissolved air floatation for removing solids from liquids was perfected by Dr. Milos Krofta of the U.S.A. DAF technology provides the concepts of supercell methods used for wastewater streams in processing the property with different various characteristics,...