The Role of Bacteria in the Industrial Wastewater Treatment Process Part 2 Here’s the next part of our series on bacteria in the industrial wastewater treatment process. The typical growth rate curve of a bacterial culture, known as the bacterial growth rate curve, is a result of the four following phases of bacterial growth: The Bacterial Growth Cycle Lag Phase (Sometimes called initial phase). When bacteria are first introduced into an environment, little growth will take place until they adapt to their new environment. In fact, it generally takes several generation times before the bacterial numbers begin to significantly increase. In practice, the lag phase typically lasts three hours or longer.  Log Phase (Logarithmic Phase). Once full growth and cell reproduction is underway, the bacterial growth curve develops the log phase. This is the phase where the bacteria are rapidly dividing. This phase is limited by the food source and waste buildup. Stationary Phase. This phase occurs when some bacteria are growing and reproducing while others are dying. The actual number of living, viable organisms will remain fairly constant. Death Phase (Sometimes called log death phase). After a period of time, the environment becomes loaded with bacterial waste products, food supply is depleted, and the entire system begins to...

This case study is about odor control at a food processing wastewater treatment facility using Custom OE by Custom Biologicals. This odor control case study is very typical of sites we run into; odor issues are reported by the local resident. Industrial wastewater treatment generally has an element of odor control. After all, it’s nice to have BOD, COD, and FOG under control but if local residents start to complain odors, regulators and politicians tend to notice. Custom OE is a biological odor control product manufactured by Custom Biologicals. In this case study, Custom OE concentrate was used. Custom OE – Odor Control Case Study Client Category: Industrial Wastewater Treatment. Food processing and packaging plant specializing in tomatoes, peaches and other fruit. Location: California, USA Physical Plant: 6 aerated lagoons and 2 anaerobic holding ponds. Flow: 300,000 GPD average. Problem: Malodors – Local city officials received numerous complaints of bad odors originating in the lagoons. Air Quality officials threatened possible plant shutdown and/or high fines. Previous Treatment: None Custom Treatment: An initial “shock” treatment of Custom OE Odor Eliminator was applied at the rate of one 55 gallon drum per lagoon and pond. (Total = 8 drums). A daily dosage of Custom OE was applied directly to the wastewater stream at the rate of one 55 gallon drum per...

This case study is about the bioremediation of an oil water separator using Custom HC, a bioremediation product by Custom Biologicals.  Custom HC contains petrophilic, oil loving, bacteria. These oil loving bacteria have been specifically selected for use in bioremediation because of their enhanced ability to metabolize oil, petrochemicals, BTEX components and hydrocarbons. The addition of bacteria to wastewater is called bioaugmentation, a form of bioremediation. In this case Custom HC was added to the oil water separator. Bioremediation of an Oil Water Separator – A Case Study Client Category: Industrial Wastewater – Truck Maintenance Yard Location: Phoenix, Arizona, USA Physical Plant: Two 350 gallon holding tanks leading to a 4,000 gallon oil/water separator. Flow: 7,000 GPD average Problem:  TPH (Total Parts Hydrocarbon) level of 180 mg/L caused a surcharge of $7,000.00 per year. Pumping the oil/water separator monthly at a cost of $600.00 per month. Previous Treatment: Pumping the oil/water separator monthly at a cost of $600.00 per month. ustom HC was added daily to the holding tanks. A total of two 55 gallon drums were used each month. The product then flowed into the 4,000 gallon separator. Bionutrients were also added. Custom Treatment: Custom HC was added daily to the holding tanks. A total of two 55 gallon drums were used each month. The product...

This case study is about the industrial wastewater treatment of FOG (Fats, Oils and Grease) at a bakery. Food processing wastewater generally has FOG problems. Custom Biologicals has a great deal of experience with the industrial wastewater treatment of FOG. In fact, reducing FOG is generally a major concern at most industrial wastewater treatment plants. Custom uses F-TREAT, our biological wastewater effluent treatment product, to reduce FOG at wastewater facilities. F-TREAT is a bioremediation product designed specifically for wastewater treatment problems and it is effective in both industrial wastewater treatment and municipal wastewater treatment facilities.  Industrial Wastewater Treatment Reduce FOG (Fats, Oils, and Greases) Client Category: Industrial wastewater treatment. One of the largest bakeries in the Western U.S.A. Location: Los Angeles, CA, USA Physical Plant: A network of floor drains flows into a six stage 6,000 gallon interceptor. Flow: Flow is irregular but averages 35,000 GPD (Gallons per Day) Problem: High surcharges primarily for FOG averaging $60,000.00 per quarter. BOD was also high and the odor was very strong. Previous Treatment: The industrial wastewater was chlorinated heavily and discharged into the city sewage system. The installation of a large wastewater treatment facility was recommended. Custom Treatment: 4 gallons per day of F-TREAT were dispensed into the system. One half at the beginning of the main drain and...

This case study is about the biological treatment of industrial wastewater specifically a petrochemical facility. Custom HC, by Custom Biologicals, is the biological product used in this case study. Custom HC, a bioremediation bacteria product, is specifically designed to metabolize petrochemicals, hydrocarbons, phenols, and fuel oils. The problems in this case study are typical of industrial wastewater problems; surcharges and odors. Biological Treatment of Industrial Wastewater – Petrochemical Facility Client Category: Industrial wastewater. Hydrocarbon impacted wastewater treatment plant Location: Los Angeles, California, USA Physical Plant: Four 500,000 gallon clarifiers, a two stage 40,000 gallon flocculation/aeration collection tank and a 2,000,000 gallon lagoon. Flow: 1,000,000 GPD average (gallons per day) Problem: County surcharges for excess COD and TSS amount to an average of $450,000.00 per year. VOC’s are offensive to adjacent neighbor. Previous Treatment: Use of polymers injected at the headworks. Treatment:   Initial Shock of three 55 gallons Custom HC. Week One – 22 GPD of Custom HC Maintenance Treatment – 6 GPD of Custom HC Results: The following results occurred after one month of treatment: Note the very large reductions in COD, sludge, and odors. This case study outlined the use of Custom HC to biologically treat the industrial wastewater of a petrochemical facility. Custom HC is available as a liquid concentrate, a ready to use, and...