As a bulk emergency chlorine vapor scrubber system approached the end of its anticipated 20-year useful life, the city engaged Integrity Municipal Systems, LLC (IMS) inspected the equipment and proposed a system refurbishment plan that would ensure proper system performance and safe storage of the 30,000 gallons of corrosive caustic soda contained within it.
The City of Tooele, UT was looking to update their Bio-Solids program and move away from a limiting Class B product. They needed to produce a more flexible reusable material. The City found the Huber Technology SOLSTICE® to be the perfect solution and was pleased to discover the technology to be simple to maintain as well as provide a cost-effective operation. Find out how the dryer raised the quality of the bio-product to Class A.
Fairmont, Minnesota, known as the City of Lakes, is located in Martin County in southern Minnesota. The city’s water treatment plant serves a mix of customers including approximately 3,900 residential taps, 500 commercial and 17 industrial customers. Looking to the future, Fairmont city leaders began to investigate upgrading the city’s water treatment plant in 2010. The existing plant had been in operation for well over 70 years and relied on gas chlorine for disinfection.
In the late 1970s, a wastewater treatment plant (WWTP) in Tullahoma, TN, built in 1955, was overloaded and deteriorating.
In April 2013, City Utilities started up three Microclor Model MC‐1500 skid systems, each rated at 1,500 pounds per day of free available chlorine.
A medical research company in the Midwest United States offers comprehensive services to help determine the safety of life-changing compounds and assist in bringing them to the marketplace as rapidly as possible. Their drug safety evaluation research services offer dedicated expertise in a wide variety of medical arenas.
Ammonia is used as a cleaning and bleaching agent in the production of fertilizers, plastics, explosives, and many other products.
In order to meet the anticipated effluent criteria required by the Pennsylvania DEP, the Newville Borough Water & Sewer Authority determined that its existing wastewater treatment facility needed renovations. By installing two continuous fill SBR tanks, the facility lowered total nitrogen below permit limits, reduced energy costs, and created a new revenue stream (selling unused nutrient allocations). Read the case study for full details.
The water and wastewater industries face challenges at every turn — from population growth to strict environmental and financial regulations to downsizing. The complex nature of both industries puts a great deal of pressure on plant operators, who typically tackle tasks manually. Download this datasheet to learn how integrated automation software delivers improved reliability and flexibility throughout the entire operation.
When the discussion turns to requirements for “explosion-proof” pumps, many people rely on word of mouth, past practices or even old wives tales it seems. By Kevin Clemons
The Coeur D’Alene, ID, wastewater treatment plant was having continual problems with two sludge macerators, in part because of the durability of the macerator.
Lift stations are remote pumping facilities that move wastewater from lower to higher elevation. Monitoring lift stations is important to collection system operators.
Dosing of the precipitant was adjusted manually based on the laboratory measurement value of the daily composite sample and so was unable to respond to possible peaks. Although being compliant with the effluent limits, the values observed fluctuate between 0.2 and 0.8 mg/L.
As interest in biogas grows, more attention is being paid to measuring biogas flow, which has long been a problem area in process measuring technology.
Breakdown of organic wastes entering a wastewater treatment plant is accomplished by using a biomass or blend of beneficial microscopic organisms, bacteria, and solids. This converts the non-settleable solids (dissolved and colloidal matter) into settleable solids, carbon dioxide, water, and energy.
One of the most important measurements in the determination of the health of a body of water is its dissolved oxygen content. The quantity of dissolved oxygen in water is normally expressed in parts per million (ppm) by weight and is due to the solubility of oxygen from the atmosphere around us.
The QuEChERS (Quick-Easy-Cheap-Effective-Rugged-Safe) sample extraction method was developed for the determination of pesticide residues in agricultural commodities.
Anaerobic digestion processes that radically improve the quality of wastewater while delivering green energy extracted from biological waste streams are emerging as a profitable way for agricultural and food processing industries cope with the twin impact of drought and pollution challenges.
The Moundsville Wastewater Treatment Plant in West Virginia chooses not to fix a broken blower unit, but rather to correct an outdated approach. The result is a savings of $50-60K a year in energy costs.
This application note presents comparative data obtained on influent and effluent wastewater samples using laboratory and on-line TOC analyzers employing the heated sodium persulfate oxidation technique in USEPA-approved methods 415.3 and SM 5310C.
A North Carolina-based specialty chemical manufacturer, a major producer of insect repellent, was looking for a better way to measure the liquid level in its glass-lined agitated reactor. The company uses a number of complex technologies to manufacture sebacates, adipates, isophthalates, catalysts, alkyds, and other natural and renewable chemistries based on castor and citrates.
IntelliCAL™ CDC401 is a digital, graphite, 4-pole conductivity probe. The standard version is available with a 3 or 1 meter cable and is intended for laboratory use.
The Memcor® XS is a treatment unit which includes all equipment necesary to operate on a single skid.
Settings for the customer’s selection of sensors are factory-preloaded. These are uploaded to the base unit at installation, greatly simplifying set-up and assuring safety through the use of appropriate alarm limits based on Xylem’s decades of experience.
Cloth media filters are designed for a variety of tertiary treatment applications
Aerzen’s AERprocess Dissolved Oxygen Control is an integrated solution for controlling the dissolved oxygen (DO) concentration in the activated sludge treatment process and the blowers used to generate the process air flow requirement. The AERprocess system is able to maintain DO concentrations at their set points using a smart and efficient control strategy.
The need for private partnership in wastewater management has been evident for some time. As a result, there are a number of ways that private players are now involved in wastewater management. For instance, there are plant management specialists, collecting specialists, and technical specialists.
Membrane bioreactor (MBR) plants are found all around the world, serving as a go-to method for treating wastewater through a combination of processes. But as this technology gains popularity, operations must contend with the inherent aeration problems it presents.
Research from the UK has identified a “supermolecule” capable of seeking out and eliminating trace pharmaceuticals that contaminate water supplies.
A new study led by researchers with Colorado School of Mines exposes limitations with the current methods used to detect chemicals in oilfield wastewater and offers solutions to help regulators make better decisions for managing this waste stream.
Wastewater treatment in India can no longer be seen as some conservational fad. With depleting freshwater sources, water treatment is absolutely imperative. Depleting water resources is a worldwide problem with almost all nations grappling with water scarcity. But India’s massive population, coinciding with rising pollution, makes its water scarcity and clarity concerns critical.
With factors such as scarcity, aging infrastructure, and water quality driving the price of municipal water higher, businesses are increasingly considering other means of securing supply. This article examines the trend toward alternatively procured process water and its impact on municipal and commercial interests.
Atlas Copco's ZS screw blower saves energy in a wastewater treatment plant.
The ABS turbocompressor HST is based on a high speed motor with integrated turbo compressor with a frequency converter and magnetic bearings. Mainly ABS turbocompressors are used in the wastewater treatment plants and in industrial low pressure processes.
