Article Archive
Latest 25 news articles
Clean Dirt, No Doubt! (Eh?) Canada`s Nelson Environmental Remediation Treats its Business with Heat and Home Grown Values
Clean Dirt, No Doubt! Indeed. With a distinctive Northern Canadian accent and a complimentary penchant for hard work, these words resound in the minds of brothers Darryl and Warren Nelson, President and Vice- President respectively, of their contaminated soil-cleaning business, Nelson Environmental Remediation Ltd. (NER). Clean Dirt, No Doubt! is, after all, the Company?s tagline and guiding mission for this Edmonton, Canadabased environmental solutions business, one that has b...
Nitrate Problems are Soluble - but Who Pays?
Nitrate pollution in rivers, lakes, reservoirs and underground aquifers is a major problem. However, researchers from Belgium, Malta, Poland, and the UK have developed a new low cost, environmentally friendly technology, known as \\\\\\\'NITRABAR\\\\\\\' which substantially removes nitrate from groundwater. The project is an EC LIFE Environment Project that demonstrates the remediation of agricultural diffuse NITRAte polluted waters through the implementation of a permeable reac...
Effective Drinking Water Disinfection - an Assessment of Chlorine-based Methods
The need for drinking water disinfection is as old as public water supply itself. Microbiological parameters for drinking water treatment include coliform bacteria and specific pathogenic species of bacteria, vira, and protozoan parasites. Although the objective is the same ? to provide safe clean water ? the methods used to do so are numerous. The most common methods for water disinfection are chemical ones. This article gives a brief overview of chlorine-based disinfection met...
Sustainable Solution for Phosphate and Ammonium Removal
Over the past years, the ANAMMOX? system demonstrated successfully to be a simple and robust method for nitrogen removal, without the need of a carbon source and reducing energy costs by 50%. The PHOSPAQ process removes phosphate from the effluent by formation of struvite, which is a valuable fertiliser. The combination of these two processes is an effective and sustainable solution for removing N and P from waste water, at low total cost of ownership. How does it work in pract...
Cleanup of the Lower Fox River in Wisconsin, USA: The world\'s largest sediment remediation project
The successful involvement in the Miami River remediation project (2005 ? 2008) inspired Boskalis Dolman to further strengthen its market position in the USA. Before final completion of phase 2 of the project in Miami, agreement was reached about the world\'s largest sediment remediation project: Cleanup of the Lower Fox River Operable Units 2-5. This is a multi-year project involving the processing of almost 3 million m3 of contaminated dredged material. One of the major advant...
Industrial Wastewater Disposal
There are several reasons why a company would choose to modify their current approach to waste water disposal or treatment, says Jacqualine Ingram, Senior Operations Engineer at Farrer (UK). In the UK wastewater disposal and treatment is paid for in one of three ways: ?By discharging to the public sewerage system and thereafter paying the regional water authority to deal with the waste ?By paying a specialist company to take the waste away and manage it ?By treating it to a high...
Innovative Applications of Fiberglass Reinforced Plastics for Process Water Pretreatment
Traditionally reverse osmosis systems are designed with pretreatment systems to control fouling of the membranes, maintain performance of the membranes, and lower the cost of cleaning the membranes. The pretreatment system extends the life of the membranes which in part will lower the overall total cost of operating the seawater reverse osmosis system.
Streamlining Treatment of Challenging Wastewaters in Food Processing
Ken?s Foods? newly upgraded wastewater treatment facility, the world?s largest anaerobic membrane bioreactor (AnMBR) system, is not only a showpiece for the efficient reduction of chemical oxygen demand (COD) and total suspended solids (TSS) in challenging food processing wastewaters with high levels of organic content, but it is also supplying 200,000-plus cubic feet of biogas a day, providing 100% of the heat required for the treatment plant?s operation.
Using Ultrasonic to Control Algae & Biofilm Costs
Implementing ultrasound, a new ?green? technology, is helping municipalities improve water quality and decreasing operational costs by controlling algae growth in ponds, lakes, and reservoirs and by preventing biofilm growth on equipment inside the plant.
The Impact of Air Pollution Control Systems on Operating Costs: Modern Designs, Components, add-on Equipment Help Reduce Energy use and Improve Profitability
In real estate, there are three important factors: location, location, location. In manufacturing, there are also three important factors: operating costs, operating costs, operating costs. While the initial purchase price of any piece of capital equipment is certainly a critical element, the costs to run that same equipment will affect profitability for the entire life of the system.
Brofind Demonstrate How to Turn your VOC Abatement or Solvent Recovery Plant (New or Existing) into a Never-Ending Energy Source
Before the increase in Global ecological consciousness, air treatment plants were only required to comply with the norms set out for emissions from the stack.
Assessing the Potential for In Situ Biological Remediation
Natural Attenuation is usually the lowest cost and most sustainable approach to remediate a site contaminated with organic pollutants. However, many consultants discount natural attenuation when comparing remediation options as they lack confidence in biological treatment processes.
Award-winning Program in Terneuzen, The Netherlands, Taps Municipal Wastewater for Industrial Processes
As fresh water supplies around the world continue to shrink, efficient water management becomes a hallmark of a company?s sustainability and responsibility. More and more often, industry teams up with municipal water providers and utility companies to look for alternatives to fresh water usage in industrial processes. Water recycling and reuse is one solution ? especially in areas that already struggle with shortages of potable water from natural sources. The town of Terneuzen,...
Ready to Market Green Non Bio Sewage Odour Systems
This new system is fully automated, doesn’t need any chemicals, uses irrigation or brackish water, discharges odour free air and is 99.9% on line.
Multisafe Double Hose-Diaphragm Process Pumps for the Wet Oxidation of Wastewater
Reactor feeding requires hermetically sealed displacement pumps with a maximum of reliability and availability. Minimum variations in terms of flow and pressure are additional criteria for pump selection. Hose-diaphragm pumps have adapted better to this type of application than the traditional diaphragm pumps and have proved to be most successful in worldwide applications. With built-in redundancy and fault finding diagnostics this unique pump design sets new standards in pump...
In-Situ Soil and Groundwater Decontamination of Site Near Sheffield (Ecclesfield) Using Electric Resistive Heating Technology (Six-Phase Heating)
This summary describes why Electric Resistive Heating (Six-Phase Heating (SPH)) was selected as the most appropriate technology for remediating the former manufacturing site at Eccelsfield near Sheffield. This first use of SPH in the UK has shown how difficult soil and contaminant conditions should not be a barrier to effective, thorough and rapid in-situ remediation. Included are technical and operational performance details which confirm the SPH technique as one of the most ef...
Low Cost Treatment and Disposal of Olive Mill Wastewater
During the extraction of oil from olives, large amounts of potable water are used, solid waste, and olive mill wastewater (OMW) are generated. OMW is phytotoxic, has antibacterial effects, and high pollution potentials. Azraq bentonite (AB), reddish volcanic tuff (RVT), lime (CaO), aluminum sulfate (alum), ferric chloride, and sodium carbonate were used to remove turbidity (NTU) and non-specific organic compounds (COD) from OMW. The results showed that RVT, ferric chloride, and sod...
Lamella Separator for Sedimentation Clarification in Limited Space
Zöls GmbH in Fürstenzell is a modern and advanced company. Their production focuses on the processing of sand and gravel. At the company’s modern processing facilities, up to 400 t of high quality aggregates are processed per hour. The waste water from this production process contains fine particles of loam and silt. Leiblein (Germany) was contracted to install a system for the efficient removal of the particles from the waste water, allowing its reuse in a closed circuit.
Side Stream Air Lift MBR Development and Successful Application of a New Generation of MBR
One of the more recent applications of membrane technology is in membrane bioreactors (MBR). The MBR design target is an ideal combination of bacteria to reduce the organic content of waste and membrane technology to remove particulate matter to produce high quality water for reuse.
International Focus: China
With the world’s biggest population and economic growth rates of around 9% for the past 25 years, China represents a huge market for environmental technologies and services.
Biogas – Energy to Reckon With
Biogas is a green energy calling on more and more leading edge technical installations. Undoubtedly, the produced kW cost is not yet a competitor against nuclear or fossil fuel energies, but the systems installed are more and more efficient, and their financial profitability is increasing. In this field, Germany has built itself a world-leading position. Germany built 820 systems in 2006, increasing the total installed production units to 3700 and is now the No.1 world biogas b...
Replacement Groundwater Plant at UKAEA Harwell
Jason Allen reports on Bilfinger Berger Environmental Ltd’s project to design and build a groundwater containment plant for the UKAEA.
MBR Technology for Wastewater Reclamation in Rural Areas
Membrane bioreactors (MBR) with submerged membrane modules have set the standard for the next generation of biological wastewater treatment plants as they offer two main advantages; a significantly improved effluent quality and a substantially smaller footprint. Aside from the major application in industrial wastewater treatment, there are also many municipal applications where MBR technology is being implemented. One example is the Bega Valley Sewerage Program (BWSP) in Austral...
Your Solution to Waste Incineration and Gas Treatment
Servithen, an engineering company that acts in the thermal and environmental fields, has been created in 1986. Initially focalised in the audit, expertise and revamping of existing installations, Servithen has extended its services in the furniture of complete lines of waste incineration together with gas treatment and purification units, which include: furnaces, venturi scrubbers, cooling tower, neutralisation towers, wet electrostatic precipitator, and dry gas treatment equipm...
IFAT 2008 Grows and Grows
In 2005 the event attracted a new record number of participants with 2,223 exhibitors from 36 countries and 109,000 trade visitors from 166 nations. IFAT 2008, which takes place in Munich from 5 to 9 May 2008, offers an attractive exhibition programme: innovative solutions and state-of-the-art technology for practical, economical operations, a broad range of professional services in the area of water, sewage and refuse management and numerous attractive information events.