Water Chemistry Articles

  • CO2 degasification air stripping tower design - Case study

    Background - Water Chemistry Controls the Design A common method to adjust pH of water - typically well water intended for potable use - is to pass the water through a packed tower. Such towers intended to degas the water was also commonly called 'air strippers'. This is because the water is passed down over a bed of 'packing1 as air is blown into the bottom of the tower to pass up and out ...


    By Raschig USA Inc.

  • Well Water Treatment Systems

    Well Water Treatment Systems | Industrial & Commercial Well water treatment systems are used to purify water and eliminate impurities from all types of well water (dug wells - driven wells - drilled wells). To have the right and the most efficient well water treatment system, you need to correctly analyze the well water chemistry and to have a fundamental understanding of how ...


    By Pure Aqua, Inc.

  • Stable Operation, High Circulation and Budget Savings

    Noerresundby Sports Center in Denmark has had DESMI pumps installed for many years. The pumps have been used for circulation of clean water in the pools. In total they have 24 DESMI pumps and recently two new pumps have been installed - one of them generates a yearly saving of approx. EUR 6,700. ”We are very pleased with our DESMI pumps, especially the two new ones, whereof the one handles ...


    By DESMI A/S

  • Groundwater quality assessment and its suitability for agricultural purposes in the Behbahan Plain, SW Iran

    Groundwater is the main agricultural water resource in arid and semi-arid regions, so, preserving it is extremely important. In this study, groundwater quality was assessed for irrigation, using the principal chemical and physical quality parameters from 30 wells in the study area. Groundwater classification on the basis of electrical conductivity reveals that more than 85% of the samples taken ...


    By IWA Publishing

  • Pool water quality and prevalence of microbes in filter backwash from metro-Atlanta swimming pools

    During the 2012 summer swim season, aquatic venue data and filter backwash samples were collected from 127 metro-Atlanta pools. Last-recorded water chemistry measures indicated 98% (157/161) of samples were from pools with ≥1 mg/L residual chlorine without stabilized chlorine or ≥2 mg/L with stabilized chlorine and 89% (144/161) had pH readings 7.2–7.8. These water quality parameters are ...


    By IWA Publishing

  • Where is water temperature monitoring most important?

    It is essential to monitor for abnormalities in water temperature, as the water chemistry can be significantly affected by fluctuations. Whether you are monitoring domestic or commercial water supplies, the temperature should be regularly checked. We would recommend regular water testing for all water supplies and, in agriculture, for continued monitoring of natural water formations. ...


    By Aquaread Limited

  • MYTH vs TRUTH: “If my disinfectant residual is always high enough, I don’t have to worry about microbes”

    Monitoring disinfectant residuals (i.e. Free and Total Chlorine and/or Chloramine concentration) is one of the most essential practices in drinking water management programs.  This ensures that sufficient protection is maintained at all points in the distribution system.  The absence of a disinfectant residual means that suppression of microbiological growth is much more difficult and ...

  • An exploratory study of the effects of stormwater pipeline materials on transported stormwater quality

    Implications of three sewer pipe materials (concrete, galvanized corrugated steel, and polyvinyl chloride (PVC)) for stormwater quality were explored in laboratory experiments, in which three types of stormwater, SW1–SW3, were circulated in 0.5 m long sewer pipe sections. SW1 and SW2 represented synthetic rainwater, without and with fine street sediment added (CTSS = 150 mg/L), respectively, ...


    By IWA Publishing

  • Hydrochemical characteristics and quality assessment of urban groundwater in Urmia City, NW Iran

    The aim of this study was to evaluate the quality and hydrochemical characteristics of urban groundwater in Urmia City, northwest of Iran. In order, 59 groundwater samples were collected and analyzed for various anions and cations. Result shows that, mineral weathering, ion exchange and anthropogenic activity are the main hydrochemical processes controlling urban groundwater chemistry. The ...


    By IWA Publishing

  • Salting icy roads affects water supplies

    It’s basic chemistry: Saline water’s freezing point is much lower than fresh water’s, which can help keep ice from forming on roads. To reduce winter accidents, municipal and state workers often apply salt and other compounds to icy roads, because if not accidents start to happen and people end up in need cash in emergency. Unfortunately, this may have unintended consequences ...


    By Fluence Corporation

  • Solar Tech could provide clean water in rural india

    University of Edinburgh researchers are working on low-cost, low-energy technologies to simply and effectively treat wastewater, which could provide clean drinking water to residents in rural, remote areas of India and also stem the spread of diseases. The central material is an inexpensive, coated plastic that relies on light to create a chemical reaction. It absorbs sunlight, then activates ...


    By Fluence Corporation

  • Five common problems with zero liquid discharge and how to solve them

    As more and more facilities are turning to zero liquid discharge (ZLD) for wastewater treatment and effluent reduction—whether it’s to comply with local discharge regulations or recycle and reuse as much water as possible in your process—more information is becoming available about the possible issues your facility might face while using ZLD technology. Because of the scope of ...


    By SAMCO Technologies, Inc.

  • Hydrochemistry and water quality assessment of the Maroon River in Behbahan area, SW Iran

    Assessing water quality is important in optimizing water usage. In this study, six water samples were taken from points along the Maroon River in order to evaluate its quality. The concentrations of Cl−, SO42−, HCO3−, CO32−, NO3−, K+, Mg2+, Na+, and Ca2+, as well as ...


    By IWA Publishing

  • What is a wastewater treatment system and how does it work?

    For industrial companies producing wastewater as part of it’s process, some type of wastewater treatment system is usually necessary to ensure safety precautions and discharge regulations are met. The most appropriate wastewater treatment system will help the facility avoid harming the environment, human health, and a facility’s process or products (especially if the wastewater ...


    By SAMCO Technologies, Inc.

  • What is cooling tower water treatment?

    It is a dynamic manufacturer and supplier of sustainable water and wastewater treatment solutions. The cooling tower water treatment is an integral part of a process in many in industries. The water treatment problems can very costly when the cause of heat transfers in the cooling tower, health and safety concerns and equipment failure. For this problem some company ...

  • Pulp & Paper Water Treatment - A look at optimizing water resource management - Case Study

    Application Case Study (Pulp/Paper Operations) The pulp and paper industry has traditionally been a consumer of large amounts of fresh water and power. Recently, increased focus has been given to the optimized efficiency of paper mills and to the environmental sustainability footprint of the industry. Therefore, water resource management has become a more critical factor ...

  • The productive environmental laboratory: BSK Labs boosts efficiency with Metrohm IC

    BSK Labs runs a number of environmental laboratories and service centers along the west coast of the US. A total of 70 employees – including microbiologists, chemists, lab technicians, and support staff – make sure that the 200 to 350 samples that come in every week are analyzed. BSK Labs specializes in potable water chemistry, ground water monitoring, storm water runoff, solid waste ...


    By Metrohm AG

  • How Do You Know If You Need a Cooling Tower Water Treatment System for Your Plant?

    In order to keep your production flowing smoothly and avoid costly damage to your cooling tower equipment, the proper treatment of your cooling tower water is essential. If cooling tower water is not properly treated, organic growth, fouling, scaling, and corrosion can reduce plant productivity, cause plant downtime, and require costly equipment replacements down the road. ...


    By SAMCO Technologies, Inc.

  • How to Increase Your Industrial Cooling Tower Efficiency

    Although cooling towers are generally some of the most cost-effective cooling mechanisms as compared to other cooling technologies (such as many dry air cooling systems), it is still important to monitor your industrial cooling tower efficiency and run it as seamlessly as possible. This will ensure your facility can: Save energy Reduce the amount of ...


    By SAMCO Technologies, Inc.

  • Common Cooling Tower Water Treatment Problems and How to Solve Them

    For companies using cooling towers to remove heat from an industrial process or for cooling large buildings, there are several issues that can surface during the cooling tower water treatment process that we see on a regular basis. Because these issues occur often, it’s important to know what to look out for in advance, perhaps saving you some time and resources down the line. ...


    By SAMCO Technologies, Inc.

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