Projects
Industrial RO project in Dinajpur: interpreting a 1500 GPD / 250 LPH system brief
A project-focused explanation of the supplied Dinajpur industrial RO installation image and the design questions behind this type of system.
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Projects
Automatic RO project in Narayanganj: lessons from a 2 m³/hr plant
A project-focused article based on the supplied Waterwise artwork showing an automatic 2 m³/hr RO plant in Narayanganj.
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Projects
Stainless-steel DM and EDI project in Monohordi: 750 LPH system notes
A project-focused article based on supplied Waterwise artwork for a stainless-steel industrial water-treatment plant with DM and EDI.
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Projects
Industrial WTP 20 m³/hr: project planning lessons from a large-flow plant
A project-focused article based on supplied Waterwise artwork showing a 20 m³/hr industrial water treatment plant.
Read guide →AllROWTP & filtrationWastewaterHigh-puritySofteningTesting & qualityMaintenanceEquipmentCommercialBuyer's guideProjects
Bangladesh Water IssuesArsenic in Bangladesh: what a water test should tell you
A practical guide to arsenic water testing, Bangladesh standards and treatment decisions.
Read article→GroundwaterIron in groundwater: staining, taste and treatment planning
How iron concentration, oxidation, pH and backwash affect groundwater iron-removal system design.
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Water TestingWhy Water Testing Should Come Before Treatment Selection
How source, intended use and relevant water-quality parameters help define treatment before selecting equipment.
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Drinking WaterTDS in Water: What It Means
Understand what total dissolved solids can indicate and why a TDS reading alone does not identify contaminants or prove drinking-water safety.
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DisinfectionChlorine in drinking water: what residual chlorine means
Chlorine is widely used for disinfection, but the right residual depends on the system and intended use.
Read article→Water qualityWater pH and treatment planning: why the number matters
pH affects corrosion, scaling, disinfection and the performance of several treatment processes.
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FiltrationTurbidity in water: what cloudy water means for filtration
Turbidity is an optical measure associated with suspended and fine particles, and it can affect filtration and disinfection.
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GroundwaterManganese in groundwater: assessment and removal planning
Manganese can create colour, deposits and operational problems, and its treatment often depends on oxidation and filtration conditions.
Read article→Water testingMicrobiological water testing: when bacteria testing matters
Microbiological testing is important when the intended use requires hygienic water and the source or storage system could be vulnerable to contamination.
Read article→Bangladesh water qualityTube-well water testing in Bangladesh: what to check before treatment
Tube-well water can vary significantly by location and depth, so equipment selection should start with a relevant test rather than a generic package.
Read article→Water sourcesGroundwater vs surface water: why the same treatment package should not be assumed to suit both
Groundwater and surface water present different treatment challenges. Assuming a treatment package designed for one source will work equally well for the other is a common and costly mistake.
Read article→GroundwaterIron removal plant design: oxidation, contact and filtration
How groundwater iron concentration, pH, oxidation and backwash shape an iron-removal treatment plant.
Read article→GroundwaterIron and manganese removal: when one filter may not be enough
Planning treatment where groundwater contains both iron and manganese, with attention to oxidation and pH.
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Drinking WaterArsenic removal treatment options: why testing comes first
An overview of arsenic treatment planning for groundwater, including concentration, iron, media selection and verification.
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Commercial WaterCommercial water treatment for offices: drinking water and utility planning
A practical framework for office water-treatment systems, from drinking-water demand to storage and maintenance.
Read article→Bangladesh Water IssuesSeasonal TDS Variation in Bangladesh Groundwater: What Causes It
Groundwater quality in Bangladesh is not necessarily constant throughout the year, and TDS in particular can show meaningful seasonal variation in some areas. Here is a general orientation to why.
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Water Treatment TechnologyActivated Alumina for Arsenic Removal: How It Works
Activated alumina is one of several specific technologies used for arsenic removal from groundwater in Bangladesh. Here is a general orientation to how it works and its practical considerations.
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Bangladesh Water IssuesGroundwater Recharge and Declining Water Tables in Bangladesh
Groundwater levels in parts of Bangladesh, particularly Dhaka, have been declining for years due to extraction outpacing natural recharge. Here is a general orientation to what this means and what individual properties can reasonably do.
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Industrial Water TreatmentClean-in-Place (CIP) Systems: Water Quality Requirements
Clean-in-place systems used in food, beverage and pharmaceutical production have their own specific water-quality requirements, separate from general process water. Here is a general orientation.
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Water TestingWater Quality Testing Parameters Explained for Non-Specialists
A water test report lists many parameters most people have never had to interpret before. Here is a plain-language orientation to what the commonly reported ones actually measure.
Read article→Drinking WaterPurified, Mineral and Alkaline Water: What's the Real Difference?
These terms get used loosely in marketing, but they describe genuinely different things. Here is a plain explanation of what each one actually means.
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Commercial Water TreatmentCorporate Office Drinking Water Solutions in Bangladesh
Office drinking-water needs differ from a household's in scale, usage pattern and accountability. Here is how that generally changes the right approach for a corporate office in Bangladesh.
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Bangladesh Water IssuesDhaka WASA Water Quality: What the Numbers Actually Mean
WASA-supplied water is treated before it reaches your tap, but treatment does not mean the water arriving at every household is identical. Here is what generally affects WASA water quality on the way to a tap.
Read article→Bangladesh Water IssuesHow Climate Change Affects Water Quality in Bangladesh
Bangladesh's water resources are widely discussed in the context of climate change, given the country's low-lying delta geography and coastal exposure. Here is a general, non-alarmist orientation to the main themes.
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