Due to the dynamics of liquids and gases flowing through elbows, valves, pumps, and other pipeline structures, every flow-meter methodology has its own design limitations. Unlike Venturi meters, pitot tubes, orifice plates, and other devices, V-Cone meters provide highly accurate and reliable readings with minimal straight-pipe length restrictions and virtually no maintenance, in pipe sizes up to 120”.
NSISP is one of South Australian Water Corporation’s (SA Water) biggest infrastructure projects undertaken in Adelaide metropolitan to connect the north and south drinking water distribution systems and to increase access to their desalination plant. The project included the construction of 32 km of pipeline through metropolitan main roads and suburban inner streets. This is no small feat and getting it done right meant fitting together a lot of different moving pieces.
Recently, ASCE released its Infrastructure Report Card, giving the nation’s drinking water infrastructure a D: in poor to fair condition and mostly below standard. Many water utilities and communities are doing the hard but necessary thing in finding the resources to upgrade their aging water infrastructure. And, for those in earthquake prone areas, hopefully considering an earthquake resistant system.
The decisions and ROI calculations get even more complex when plant staff and their engineering partners are constrained by or must factor in obsolescence should the plant want to consider upgrading their process systems’ communication method.
Until the last decade, bromate was seldom a topic of concern for most treatment facilities. However, an increasing shift toward ozone-based disinfection processes has raised awareness of bromide concentrations in raw water and the potential to form bromate through the disinfection process.
Vero Beach (population 15,220 in 2010) is a small but densely populated city adjacent to the Indian River Lagoon on Florida’s east coast. Many of the city’s approximately 1,500 on-site septic tanks and drainfields were failing, and the excess nitrogen, phosphorus, and bacteria were considered primary contributors of pollution to the watershed.
After an international tender process, the Israel Electric Company (IEC) chose Fluence to design, manufacture, and supply containerized ultrapure water production systems for use as makeup water for heat-recovery steam generators (HRSG) and for NOx emission reduction at recently upgraded power plants across Israel. More than 15 units of 20 m3/h production modules, each fitted in two 40-foot shipping containers, were provided to seven power plants. Their compact design allowed for ease of installation, operation, and maintenance while meeting the customer’s demanding engineering standards.
In response to the devastation from a 2013 typhoon that caused the Yongxin and Yongjiang rivers in Ningbo, China to overflow, Ningbo Raw Water Group Ltd. commissioned the detailed design and construction of a CNY 178 million emergency sluice pump. The pump would provide flood control measures and mitigate future flood losses to improve urban infrastructure services within the Zhejiang province. To avoid the risk of additional flooding from another typhoon, the Raw Water Group required the urban flood control project to be delivered in a demanding eight-month schedule—a process that would ordinarily take 24 months to complete.
Scum is not a substance that anyone in a wastewater treatment plants wants to deal with. Scum, the greasy substance that floats to the surface of clarifiers, gets nastier as it accumulates. Some smaller wastewater treatment plants mix their scum back into other processing streams while other larger plants treat their scum separately. The City of Fort Worth takes a unique approach in managing its scum and now turns what was once a liability into an asset.
XXXX Plating Company operates a decorative plating shop in Los Angeles, Ca., doing finishes in nickel, copper, and chromium.
Collaboration is the warm-blooded heart of our cold, calculating approach to science. Our teams of technology specialists work to establish customized, lasting solutions in wastewater treatment for each client—and every industry. As our current innovation initiatives in dairy, petrol and waste water systems have shown, there is no diffuser membrane market too unique for our state-of-the-art polymer materials. Mainsail’s technology groups make sure of it. Our integrated approach to customized solutions allows us to offer a complete package of solutions to any challenge.
Oil-free blowers are an essential element of municipal and industrial wastewater treatment facilities, where they are utilized to power a variety of applications.
A wastewater treatment plant separates solids from the liquid, and consists of two basic stages: primary treatment and secondary treatment.
The analysis of Total Organic Carbon (TOC) in seawater can be both challenging and expensive. The concentration of organic carbon in seawater is of considerable interest. The effect this matrix can have on TOC analyzers can lead to rapid consumable turnover, costly maintenance and repairs.
Water quality test strips have been around for decades. They are usually constructed from a porous media, including different types of paper, and undergo a color change when dipped into water containing the analyte of interest. These test strips have seen application in swimming pools, aquariums, hot tubs, remediation sites, and other commercial/environmental areas.
Almost all wastewater collection system odor and corrosion problems are a result of the formation of sulfide. Sulfide is formed under the anaerobic conditions that typically exist in wastewater force mains.
A Southern U.S. municipality experiencing taste and odor issues in a certain neighborhood was also having difficulty maintaining chlorine residual levels in the area. Biological growth was suspected, however, water leaving the treatment plant met and exceeded all water quality requirements. After several investigations, the source of contamination in the distribution system could still not be identified.
Pure steam is used in sterilization chambers as a common method to sterilize pharmaceutical products, such as equipment parts, instruments, containers and materials for sterile environments.
Homes, industry, schools, and businesses all generate sanitary waste, or sewage. Sewage treatment is a multistage process that cleans up wastewater before discharge or reuse. In the final step of the treatment, disinfectants are added to kill disease-causing organisms. Common disinfectants are chlorine gas and sodium hypochlorite. Chlorine dosage levels are designed to leave almost no residual in the wastewater after treatment
There are several basic methods for reducing harmonic voltage and current distortion from nonlinear distribution loads such as adjustable frequency drives (AFDs). Following is a description of each method, along with each method’s advantages and disadvantages.
Monitoring phosphate during the wastewater treatment process allows for fine-tuning and optimizing chemical dosing for removal of phosphate, which provides significant cost savings to the plant while protecting the aquatic environment downstream of the facility.
At the Stockholm World Water Week 2019, the need for new water infrastructure was a theme running through the conference agenda. As extreme weather events occur now with alarming regularity, the question is material for every water user, not the least of which are utilities and local governments.
Tropical cyclones — storms that bring strong, rotating winds and rain, and which can intensify into hurricanes or typhoons — affect coastal regions around the world. Our research team, centered at the University of North Carolina’s Institute of Marine Sciences, has analyzed a 120-year record of tropical cyclones affecting coastal North Carolina, and found that six of the seven wettest storms over this time period occurred in the past two decades.
When designing anything, whether it be a machine, a program, or a process, there are always a few key factors to consider that can determine the validity of the design. Over the past decade, water and wastewater treatment methods have been focused on developing solutions for the water scarcity epidemic with additional emphasis on sustainability. Seawater reverse osmosis (SWRO) plant design requires careful analysis with several criteria to consider in the design of these systems.
To make informed decisions about how to limit exposure to cyanotoxins, utilities need information to select and implement a comprehensive and technically sound management approach. The Water Research Foundation (WRF) has been actively involved in developing effective innovative solutions to help utilities address this challenge and protect public health.
Hurricane Dorian has left a trail of devastation over the last few days, but an onslaught of destructive floods have hit communities all across the country this summer. From small towns in the Midwest and Southeast to large cities like Washington and New York, torrential rains have inundated homes, cut power, and disrupted lives.
Your body is a machine. Like most machines, you have to properly maintain your body in order for it to function properly. Along with regular cleaning and checkups, you also have to be cognizant of what food you put into your body or else it won’t work at its maximum potential. An industrial reverse osmosis water treatment system actually works in quite a similar way.