Water Treatment Technology

Judgment of the National Green Tribunal regarding plywood factories operating in Yamuna Nagar, Haryana, 27/05/2025

Judgment of the National Green Tribunal, May 27, 2025 in the matter of Sumit Saini Vs Shree Ram Steel Industries & Others. Sumit Saini, resident of village Damla, District Yamuna Nagar, Haryana had sent a letter petition dated May 14, 2022 to the NGT. The application said that around 25 …

Removal of arsenic from aqueous solution using Acidithiobacillus ferroxidans

The paper is about the removal of arsenic from aqueous solution using the bacterial species Acidithiobacillus ferrooxidans. The bacterium was cultured under aseptic condition.

A study for estimating of bacteriological removal efficiency of HRF in combination with SSF

This paper attempts to develop a most competent roughing filter combination for low-cost surface water treatment in rural areas by using different parameters of roughing filter such as length of filter, flow condition, filter media, head loss, and velocity.

Application of nanotechnology to water treatment systems - An overview

This paper presents a detailed overview of the processes and technologies emerging globally in the field of nanoscience with specific application to water treatment systems. The paper highlights the cost - effectiveness and high - performance of such processes. The importance of carrying out intensive research to assess the potential …

Draft master plan for Port Blair planning area 2028: Volume II

This Master Plan is aimed to develop Port Blair and its environs progressively into self sustaining community, with socio-economic development and enhancement in quality life keeping in view of its ecologically fragile environment. The main objectives of the plan are: Regulating new physical entities and activities in an orderly manner; …

Draft master plan for Port Blair planning area 2028: Volume I

This Master Plan is aimed to develop Port Blair and its environs progressively into self sustaining community, with socio-economic development and enhancement in quality life keeping in view of its ecologically fragile environment. The main objectives of the plan are: Regulating new physical entities and activities in an orderly manner; …

AFM water treatment for biodiversity, a solution to global warming?

Sand filters treat most of our drinking water supplies, and they are the most common filtration technologies used for waste water, sewage effluent, and grey water recycling and water treatment in general.

Ozone in the advancement of drinking water treatment technology

Resulting from the enhanced micro-flocculation effect of ozone the filtration rates can be increased, smaller filtration beds used and even the chemical consumption lowered.

Innovative ultrafiltration technology in a seawater desalination plant used for a power plant

Ultrafiltration is becoming a preferred alternative as pretreatment to sea water reverse osmosis plants delivering superior water quality to reverse osmosis.

Alternatives for seawater pretreatment

Seawater pretreatment is an integral part of every Seawater Reverse Osmosis (SWRO) desalination plant. The key purpose of the pretreatment system is to remove particulates, debris, micro organisms, suspended solids and silt from the source seawater prior to reverse osmosis sepration.

Chinese power plant overcomes challenges of seawater for use as process water

Water is a notoriously scarce resource in northern China, a situation that has forced many industries in the region to turn to desalination for process water. Located in HeBei province close to the Bohai Sea, the WangTan Power Plant has a 2x600MW capacity. The Bohai Sea has high turbidity that …

Purifying water at point of use

Deepak Saksena, Country Director, AED (Academy for Educational Development) India, in conversation with Rakesh K. Singh on

Decentralised wastewater management using constructed wetlands in Nepal

Environment management is a significant challenge in developing countries mainly due to lack of strong legislation to control wastewater and institutional capacity for integrated planning and management. This paper describes the importance of small scale decentralized wastewater treatment using reed bed treatment systems in Nepal. It shows how public/community participation …

Decentralised wastewater treatment making strides

Over 80 per cent of water consumed in flats and buildings comes out as wastewater. In un-sewered areas, the conventional practice has been to use a septic tank as the recipient of wastewater flows and the liquid effluents then emerging being led into soak pits or leaching trenches. This form …

Conserving water in membrane treatment systems for drinking water & softening applications

Point of use (PSU) reverse osmosis (RO) drinking water systems and point of entry (POE) ion exchange water softeners are two of the most universal water treatment technologies used today for residential and commercial locations. However, these systems have operational characteristics that limit their use if installed in water short …

Testing water: Treatment products for bacteria removal

Bacteria, viruses and cysts represent the three types of microbiological contaminants that may be found in water. Following this occurrence pattern, the NSF task group on microbiological standards has proposed a requirement that bacteria reduction claims are accompanied by tested claims of virus reduction and cyst reduction.

Water dispensers: Indian scenario

Water dispenser is relatively a new concept in the minds of Indian consumer. Usage of packaged water dispensers is rising among single user commercial segment.

Produced water - Treatment system ensures discharge compliance for oil fields

The case study is about the water treatment system used in oil production unit which removes 99.9% of the influent oil and maintains consistent overboard water quality.

Self cleaning - Pre filtration for RO membrane systems

Self-cleaning pre-filtration drastically reduces the operational costs of membrane filtration systems and paves the way for trend of increasing water reuse.

Filtration technologies - Options and opportunities

In India, there is a selection of filtration and separation technologies that can be productively applied to resolve many of the water issues.

A comparative study on drinking water quality of Bhopal, India, with reference to 5 MGD filteration plant and ground water

In the present study different water quality parameters i.e. physico-chemical, heavy metals, haloalkanes, pesticides & most probable number of bacteria were analyzed in pre-monsoon, during monsoon & post monsoon season. The study area selected was Narayangiri Filtration Plant in Bhopal city. The study reveals that the quality of surface water …

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