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part washing Applications

  • Oil water separation for the food industry

    Packaged-food producers frequently use and then must discard large batches of cooking oil used in their process. Usually they drain most of the oil directly from equipment, but they must remove residual oil by regularly washing fryers, ovens, conveyors, and other machinery. 

    The oil mixes with the wash water and becomes part of the plants wastewater stream. Having oil in wastewater complicates the wastewater-treatment process by making it more expensive, more time-consuming, and less effective. Additionally. as with other manufacturers, packaged-food producers want to reduce waste and decrease the environmental impact of operations. That is why removing used oil and solids from wastewater before it is discharged is a priority.

    By Oil Skimmers, Inc. based in Cleveland, OHIO (USA).

  • Odor Scrubbers Applications with Hydrogen Peroxide

    Hydrogen Peroxide as a Replacement for Sodium Hypochlorite Hydrogen peroxide may be used in both mist scrubbers and packed tower scrubbers as a replacement for sodium hypochlorite (bleach). Like bleach, the process involves two concurrent mechanisms: 1) absorption of the odors (H2S) into the alkaline scrubbing solution; and 2) oxidation of the absorbed sulfide in solution. Step 1: H2S + NaOH → NaSH + H2O Step 2: 4H2O2 + H2S → H2SO4 + 4H2O Typical dose ratios are 5 parts H2O2 per part H2S or, when used in place of bleach, one gallon 50% H2O2 for every 10 gallons of 15% sodium hypochlorite (NaOCl). This generally translates into a break-even cost scenario. Sufficient caustic soda (NaOH) is added to maintain a pH of 10.0 - 10.5 in the scrubbing solution. There is also in practice a process which uses H2O2 in series with bleach to scrub composting odors. This process relies on a series of three packed tower scrubbers: the first is a pH neutral water wash (to remove ammonia and amine odors); the second uses a conventional caustic/bleach solution in which the bleach is purposely overdosed (to oxidize the complex organic sulfur odors); and the third uses a caustic/H2O2 solution (to remove the unreacted chlorine vapors carried over from the second stage). H2O2 + HOCl → HCl + H2O + O2 Typical dose ratios are 0.5 parts H2O2 per part hypochlorite (OCl-), with sufficient caustic soda (NaOH) added to maintain a pH of 8.5 in the scrubbing solution.

    By USP Technologies based in Atlanta, GEORGIA (US) (USA).

  • Welding Fume Extraction

    Welding fumes & gases are Unbreathable. Nonetheless, welding is perhaps the most common industrial process and necessary anytime the joining of metals is required. Regardless of the welding equipment type or technology, the simple process of melting metal and filler materials creates poisonous fumes and gases. ? Different types of welding processes present unique challenges to adequately handle airborne fumes. Robotic welding equipment and other automated welding systems produce a high volume of welding fumes and sparks and need to captured by a heavy duty robotic welding hood. Moreover, manual stick welding typically produces a high volume of smoke and often requires a self-cleaning fume extractor to avoid overwhelming the filters.? Lighter duty applications like MIG welding generally produce less particulate and light-duty TIG welding generates the least amount of smoke. It is important to not only consider the type of welding process but also the work piece material in order to select the correct filtration media for your application. HEPA filters are recommended for stainless steel welding, Nanofiber filters for Aluminum and parts containing higher levels of Manganese. Polyester filters are appropriate where rust inhibitor, lubricants and coatings create an oily smoke as these filters can be washed in water. Diversitech offers a complete line of fume collection machines from compact welding fume extractors to central welding fume filtration systems. We specialize in engineered solutions and our engineering team is experienced in selecting the best equipment and filter media for your particular application. We can present you with detailed technical drawings demonstrating several potential layouts and solutions including costing, installation and start-up expenses. ??

    By DiversiTech based in Montreal, QUEBEC (CANADA).


    Roper’s Restaurant, a cowboy themed restaurant in Albuquerque, New Mexico has replaced its water softener with the computerized, electronic, water-conditioner Scalewatcher from Scalewatcher North America. By installing Scalewatcher, the restaurant has avoided paying the $500 quoted for replacement media for its old water softener and also saved hundreds of dollars a year in salt and water thereby providing Roper’s with a short-term payback on the unit. Roper’s Restaurant, part of Outwest Eateries LLC dba, is located in a hard water area. This necessitated Bryce Chant, owner of Roper’s Restaurant using a water softener to prevent scale formation in the kitchen. “When I was given the price to repair our old water softener, I decided to install the Scalewatcher from Advance Plumbing”, said Bryce Chant of Roper’s Restaurant. We have had great success with it. Even though we had a water softener we still had hard water scale and a white ‘film’ in the dishwasher. Now with Scalewatcher that scale and ‘film’ has disappeared.” The average restaurant consumes 5,800 gallons of water daily, with 50% being used in the kitchen. If not properly treated, hard water can drain a restaurant’s bottom line due to the early renewal of capital equipment such as water heaters, boilers, coffee makers, dishwashers, steamers and other water-fed equipment. Hard water contains calcium carbonate that adheres to heating elements and the internal surfaces causing scale buildup that impairs efficiency. The limescale that deposits on the heating element will, if untreated, reduces efficiency, induces corrosion of the element and ultimately lead to appliance failure. In addition in restaurants, hard water also necessitates the use of additional detergents. In fact, for every additional grain of hard water, detergent use increases by between 2% and 4% per 1,000 gallons of water used. Many restaurants, like Roper’s use a water softener to reduce limescale. However, water softeners use copious amounts of both water and salt, which are expensive to buy and salt is also bulky to store. In addition, in many States now, including Southern California, municipalities and water departments are severely limiting, and in some cases prohibiting, the use of salt-regenerating water softeners due to concern regarding the increased levels of salt in ground water. The award-winning Scalewatcher system not only helps restaurants meet these regulations by minimizing salt usage but also saves money on salt purchase and has the additional benefit of removing scale from water-fed equipment. The environmentally friendly Scalewatcher provides a permanent solution to hard water problems without the need of chemicals, salt or maintenance. It works by producing a varying electronically applied force field, induced by a coil wrapped around the outside of the pipework, which keeps the minerals in suspension and thus prevents limescale forming. The water’s increased solubility enables it to dissolve existing scale, which is gradually washed away. “We are saving money each month because we do not have to purchase salt for the water softener and we are not dumping salt filled water down the drain because there is no brine process with Scalewatcher”, said Bryce Chant. “Living in New Mexico with our drought situation, I hated knowing all that water was being wasted. Scalewatcher is a truly ‘green’ technology that we are happy we have implemented”. Roper’s Restaurant has been so impressed with the Scalewatcher technology that the managers have bought units for their homes and have recommended it to family and friends. Scalewatcher models are based on continuous research and over 20 years experience and expertise as market leaders in electronic scale control with countless units sold worldwide. The patented Scalewatcher systems start at $248.00 USD and are capable of treating pipe sizes from one to 120 inches. All Scalewatcher systems come with a full performance guarantee and include free shipping throughout North America.

    By Scalewatcher North America Inc. based in Oxford, PENNSYLVANIA (USA).

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