Bentonite Clay Body Feed A body feed, such as bentonite clay, can be added to waste water when it is difficult to form an adequate floc. Poor floc formation can occur when the waste water is low in suspended solids. Without proper formation of floc particles, the undesirable constituents of the waste water such as solids, oil, grease, heavy metals and color are not removed as desired. A typical body feed is bentonite clay. A bentonite body feed will add solids and assist in the formation of floc particles. The floc particles will attach to solids, oil, grease and heavy ... » Read More
Gravity filtration vs Vacuum Assist Filtration A standard waste water sludge de-watering box uses gravity to separate the water from the solids by allowing the water to drain through the bottom screen leaving the solids on the filter media. Once dry the solids are removed for disposal and the de-watering process is started over. You can also pull a vacuum on the same sludge de-watering box by attaching an Air Operated Diaphragm (AOD) pump on the drain line. This is called vacuum assist filtration. This will improve the speed of de-watering and will help to decrease the drying time. When ... » Read More
Uncertain if a clay-based waste water treatment system will meet your expectations? Rent a Clay-based Treatment Unit Wilson offers rental units for clay based waste water treatment. The rental units are basic manual units on a small scale. Our rental units are built for flow rates of 7 to 10 gallons per minute and have a small footprint. They fit on a 5ft by 10ft utility trailer. They can be left on the trailer during the rental period or placed indoors or out. Ideal for trail runs and pilot studies. Call us toll-free at 1-800-469-0799 for availability.
Whether you are using a Dissolved Air Flotation (DAF) clarifier or a traditional gravity clarifier, wastewater contaminants such as suspended solids, oil and grease must be chemically flocculated in order for either system to remove them. The issue becomes: do I wait for the floc to settle to the bottom of the clarifier by gravity or do I float it to the top by injecting dissolved air in a DAF unit? If your floc is buoyant or slow to settle there is no question that a DAF is the better choice. Of course, you can always add what is called ... » Read More
What is a DAF? DAF stands for Dissolved Air Flotation. A DAF unit is a type of clarifier. But instead of gravity settling as in a traditional clarifier the DAF uses microscopic bubbles that attach to the floc and cause it to float. The standard DAF will have a surface rake that collects the floating floc from the floatation chamber into a sludge holding tank. From the sludge holding tank the sludge can be de-watered in a de-watering box, filter press or belt press. The treated water is often of sufficient quality to be discharged directly from the DAF to ... » Read More
What is COD? COD is Chemical Oxygen Demand and is a common analytical tool to measure the strength of industrial waste water. When COD is not reduced by common industrial waste water treatment methods it is often called recalcitrant COD. Example of COD using Fenton’s Reagent An example would be industrial waste water containing Phenol. Phenol is toxic to most microorganisms and is difficult to remove. One way to remove this recalcitrant compound is by chemical oxidation using Fenton’s Reagent. Fenton’s reagent is a powerful oxidizer that is generated when Hydrogen Peroxide is in the presence of an iron catalyst. ... » Read More
Fenton Reagent Oxidizing Process Automating the Fenton oxidizing process is easy to accomplish. The treatment process can be controlled by monitoring pH, ORP (Oxidation Reduction Potential) and Temperature. pH can be adjusted automatically by the addition of an acid or a base by means of chemical feed pump. PLC-based Control The chemical feed pump is controlled through a PLC-based control panel. The desired pH is set on the control panel and the variable speed chemical feed pump does the rest. ORP measurements are preset on the control panel to regulate the rate and amount of hydrogen peroxide being added to ... » Read More
The Fenton Process Wilson takes a phased approach to determine if the Fenton regent is a feasible treatment method for your industrial treatment process. The first phase, Phase I, is what we call Fenton Screening where COD is measured both before and after treatment to determine percent reduction and give an estimate of chemical cost. If the Phase 1 results are good, that is reaching the desired COD without excessive chemical addition a Phase II analysis is recommended. The phase II analysis examines chemical dosages of iron, hydrogen peroxide, lime, rise in temperature and reaction times. These parameters are the ... » Read More
Ground Water Treatment Building Mural We are working on a large groundwater remediation project in Houston that is located in a residential neighborhood. The groundwater remediation control building is located in the dog run of an upscale apartment complex. Last month the apartment manager hired Salcreations, a local muralist to paint the building. Boy, were we surprised when we saw this. It’s really good-looking.
What no to do, Wash Bay Sump Pump A customer called saying that his wash bay sump pump was not working. It was a 1 horse power centrifugal pump. When we pulled the pump we found the impeller jammed with all sorts of debris as shown in the photo. Whoever swept the floor just swept everything into the sump. The pump was burned out and had to be replaced. What an expensive way to sweep the shop floor.