water control Articles

  • Rotork IQ3 actuators selected for Brazilian water treatment plant upgrade

    The upgrade at the Rio Manso WTP at Brumadinho in the south east of Brazil involved the building of an additional filter plant, the replacement of obsolete actuators on existing plant and the introduction of a Profibus digital control network. ...


    By Rotork

  • Tetrapak, Alfa Laval, Westfalia, Cream separators and Sialex®Ring - Case Study

    Tipperary Co-operative, use Sialex®Ring to help control "Scaling" on Plate Heat and Shell and Tube heat exchangers on their " hot water circuits". A further area suitable to benefit from Sialex® is in the Cream separators. These devices are prone to "Scale" build up on flushing jets. Cleaning requires did-assembly and cleaning. This can occur several times during a year. Platetek ...


    By Phoenix Ring Manufaktur UG

  • The Importance of Dewatering

    With spring comes two things: the onset of construction season for most of our country and rain- lots and lots of rain. The unpredictability of storms and the amount of rainfall is all a guessing game.  Jobsites flood, work stalls and projects get delayed. Rain makes it hard to keep dry and on-schedule. What’s the solution? Dewatering is a technique used to control ...


    By Pac-Van, Inc.

  • Enhanced Bio-Remediation of Wastewater

    Bioremediation has been used to treat hydrocarbon contamination in municipal wastewater for centuries. Most microbes used in bioremediation today are naturally occurringyetspecifically chosen and cultured versus being genetically modified. Bioremediation rivals techniques such as pump and treat extraction systems, as it provide cost savings for municipalities, as well as environmental savings by ...


    By DELTA REMEDIATION INC

  • Reverse Osmosis and Nanofiltration Membrane Filtration Systems: Common Problems and How to Fix Them

    Reverse osmosis (RO) and nanofiltration (NF) are membrane filtration technologies that are designed to remove solute ions and molecules from a pretreated liquid stream. Well-designed RO/NF units are compact and demand relatively little maintenance, making them an attractive alternative to conventional treatment trains. Even despite the merits of today’s efficient RO/NF technologies, it pays ...


    By SAMCO Technologies, Inc.

  • Scrubber Removes Grease and Particulates from Air Exhaust

    Operating Issue A food-industry leader in Alabama operates several pork-sausage cookers that exhaust over 4,000 ACFM of moisture and pork grease. The operator installed Electrostatic Precipitators (ESPs) to treat the exhaust but these systems performed poorly and generated high maintenance and operating costs. Additionally, these systems were antiquated and required significant capital ...


    By Pollution Systems

  • The Myth of Heat Illnesses

    If you have not already had a safety talk in your workplace about heat stress and related illnesses, you probably will have one in the coming weeks.  Summer is around the corner and temperatures are warming up.  You will probably hear something about becoming acclimated to the heat slowly, and drinking plenty of water. But if that’s all that you have been told about warm outdoor ...

  • TurbEx® COOLING TOWER - Case Study

    This article is about the case study of the TurbeEx® Cooling Tower in operation at a Huhtamaki U.S. pulp & paper facility. Commissioned in late Spring 2016 this TurbEx® COOLING TOWER cools process water at a Huhtamaki U.S. pulp & paper facility using TurboScrubber® fluidized packing to ensure continuous non-clogging operation even with sticky pulp & solids ...

  • Case Report: ESM30 in lake monitoring

    Background Wuhan is the capital city of Hubei province in central China and has 166 lakes that cover 2,217 square km (856 square miles) and approximately 25% of the city.  This surface water coverage is one of the world’s highest.   The Wuhan Environmental Protection Bureau (WHEPB website: http://www.whepb.gov.cn) is responsible for monitoring the surface water ...


    By Oceanalpha Co., Ltd.

  • Confirming Natural Attenuation Processes at a Coastal Site - Case Study

    Past waste disposal practices at a California coastal site resulted in a groundwater plume containing CVOCs (mainly chlorinated ethenes [CEs] and 1,1-dichloroethane) migrating offshore towards a marine harbor. CVOCs are present in the sediment porewater adjacent to the shoreline, but concentrations decreased significantly between 2000 and 2015, and NA in the marine sediments was suspected. To ...


    By SIREM

  • Kansas Facility Finds Fast, Reliable Fix to Cavitation Damage

    The Hutchinson (Kansas) Water Plant gets its water from 20 wells. The water is pumped out of the wells and into a reverse osmosis water treatment center to purify and ensure safe drinking water. At that point, a portion of the water is taken off from the main line, run through the reverse osmosis system and then mixed back ...


    By Singer Valve Inc.

  • Control water – control mold

    There is no single universal way to eliminate all mold growth.  But the single most effective method of controlling mold is to eliminate their source of moisture.  Moisture doesn’t just mean actual water; it can also be high humidity.  Few molds grow when the humidity is under 70%.  If they do, it is very ...

  • Control water – control mold

    There is no single universal way to eliminate all mold growth. But the single most effective method of controlling mold is to eliminate their source of moisture. Moisture doesn’t just mean actual water; it can also be high humidity. Few molds grow when the humidity is under 70%. If they do, it is very slowly. It is safe to say that you cannot stop mold growth until you stop the moisture. ...

  • Controlling Parameters in Water Analysis

    The COD (Chemical Oxygen Demand) is one of most important parameters in water analysis. In Germany as in nearly all European countries tax for indirect discharges is based on the COD. Using the oxygen consumption is reasonable in the case of tax because the delay time of waste water in a treatment plant depends mainly on its biological activity. The oxygen consumption again is a degree of ...


    By LAR Process Analysers AG

  • Biofilm Control for Industrial Waters

    Industrial operations can face a number of serious problems due to bacterial Biofilms growing in process water systems and cooling tower waters. Biofilm-induced corrosion, mechanical blockages and impedance of heat transfer processes result in huge monetary losses each year. In engineered systems, additional risks of biofilm-mediated contamination include negative public health consequences and ...


    By MIOX Corporation

  • Phosphorus control protects surface waters

    Phosphorus is the decisive factor for excessive algae and plant growth in water bodies, that’s why quality standards require reductions in the amount of phosphorus released from wastewater treatment plants into rivers and lakes. In recent years, the outlet limit values have not only been reduced on national levels. Depending on the vulnerability of ecosystems, especially low target values ...


    By Endress Hauser

  • Controlling condensation- controlling mold

    You know those water stains on the ceiling tiles in your office that you are certain are caused by a leaky roof. Of course, the maintenance man thinks your crazy, since your office is not on the top floor. He dutifully changes the ceiling tile and a month later the water stain is back but this time it has those little black circles that look like mold colonies. Sound familiar? There seems to be ...

  • Controlling condensation - controlling mold

    You know those water stains on the ceiling tiles in your office that you are certain are caused by a leaky roof.  Of course, the maintenance man thinks your crazy, since your office is not on the top floor.  He dutifully changes the ceiling tile and a month later the water stain is back but this time it has those little black circles that look like mold colonies. Sound familiar? There ...

  • Drinking water quality control: control charts for turbidity and pH

    Water treatment processes are required to be in statistical control and capable of meeting drinking water specifications. Control charts are used to monitor the stability of quality parameters by distinguishing the in-control and out-of-control states. The basic assumption in standard applications of control charts is that observed data from the process are independent and identically ...


    By IWA Publishing

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