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Latest 48 news articles
Pollution Prevention Under Tropical Rain Storms
Where intense tropical rain meets rapid urban development, the loser is frequently the local water course, into which all the trash, silts, hydrocarbons and other pollutants are discharged with the stormwater runoff. The sea is the final recipient, and riverine silts and sediments can be detected and often still seen many miles out from the estuaries of large tropical rivers. To help mitigate this pollution, recent trials of Hydro International’s Downstream Defender® by the National Hydraulic R...
ALGAE and BIOFILM Chemical-free Control and Treatment Solution
Algae are a large and diverse group of photoautotrophic organisms. They are single celled, colonial or macrophytic organisms, containing chlorophyll a, have simple reproductive structures, and no differentiated true roots, stems or leaves. The green algae are primitive members of kingdom Plantae, though other types of algae are classified outside the kingdom entirely. It is believed that land plants evolved from green algae about 500 million years ago, with fossil records for certain species dat...
Trojan Technologies to Supply Australia’s Largest Ultraviolet (UV) Disinfection System - Trojan Technologies
LONDON, ONTARIO, CANADA – January 19, 2011 – Trojan Technologies and exclusive distributor in Australia, Aquatec-Maxcon PTY Ltd., have been selected by the Eastern Tertiary Alliance to provide the ultraviolet (UV) disinfection system for the Eastern Treatment Plant Tertiary Upgrade Project in Melbourne, Australia. Trojan will be supplying seven closed vessel (in-pipe) UV reactors equipped with revolutionary TrojanUV Solo Lamp™ Technology. The UV system will disinfect average and peak tertiary tr...
Sludge Buildup and Aerator Blockage Solved - Franklin Miller
The District of Kitimat, British Columbia, a pristine coastal community with 10,000 residents, is located at the head of the Douglas Channel and the Kitimat River. The area is a major salmon spawning corridor, supporting a large sports fishing industry. For both ecological and economic reasons, any facility discharging wastewater into the river must be mindful of strict discharge regulations. No one is more aware of this than the management of the Kitimat Wastewater Treatment Plant. Recently, t...
Innovative Reed Beds Treat Heavier Loads in Smaller Footprints - Tori Sellers
Reed beds - a type of constructed wetland - have been used in municipal wastewater systems since the 1980s. But innovations are now widening their application to treat high-strength, industrial wastewaters such as landfill leachate, dairy waste, hydrocarbon contaminated groundwater and contaminated run-off. Earlier generation passive reed beds had a limit to the efficacy of natural biological, chemical and physical forces to remove pollutants from different types of wastewater. But that’s all...
Problem-Solver Oxidative Waste Water Treatment With the FENTOX® process, Toxic Waste Waters are Rendered Biodegradable - Eisenmann
Authorities impose strict requirements for the biodegradability of unwanted substances in water. This applies for the chemical oxygen demand (COD) in particular. At the same time, industrial waste water, for instance from chemical, pharmaceutical or cosmetics production, often has such a high concentration of toxic organic substances that their degradation is not possible in a biological sewage treatment plant. Also, high concentrations of salt, high temperatures or high variabilities in waste w...
Golden Flake Snack Foods’ Onsite Wastewater Treatment Facility Eliminates Municipal Surcharges with New Membrane Bioreactor System - Jim McMahon
The membrane bioreactor (MBR) system, designed and built by ADI Systems Inc., treats up to 400,000 gallons per day of raw snack food wastewater using advanced membrane bioreactor technology for liquid-solid separation, reducing suspended solids and biochemical oxygen demand to less than 2 milligrams per liter, eliminating $100,000 per month in municipal wastewater surcharges, and releasing 250 gallons per minute of treated, filtered, oxygenated water into the local watercourse ecosystem. Golden...
Putzmeister Piston Pumps Convey Biomass - Putzmeister Solid Pumps GmbH
Handling 20 Years of Experience in Biomass With increasing energy demand and rising energy costs, the production of methane gas through biomass processing is becoming ever more important, especially through odourtight pipelines. Meanwhile, in cooperation with process engineering partners, the issue of foreign bodies which are disturbing tremendously the process, has been resolved. In addition, besides the different processes for biomass treatment, Putzmeister is specialised in pumping hazardous...
Digital Dosing – A Solution-Oriented Concept From Grundfos - Grundfos
Precipitation, flocculation, neutralisation and disinfection are essential physico-chemical processes used in the treatment of water and wastewater. Application of the highly effective state-of-the-art chemicals now used in these processes needs to be precise, cost-effective and eco-friendly. Some of the chemicals are also very difficult to dose. Conventional dosing pumps are often unable to cope, but digital dosing pumps with cutting-edge drive technology and user-friendly operating software of...
Extending the Life of Small Wastewater Plant in Switzerland - Tsurumi (Europe)
Tsurumi’s FHP decanting pumps provide a cost effective solution to limited tank capacity in small wastewater treatment plants. The pumps remove supernatant water to leave only pure sewage, reducing the overall volume of stored waste and extending the life of the plant. Iseltwald wastewater plant in Switzerland uses five FHP pumps for this very purpose. Small wastewater treatment plants do not have the luxury of excess space. With limits on rotting tower size and even tighter limits on budgets...
Using Air Flow Meters on Aeration Diffusers Improves Wastewater Treatment Efficiency - Steve Craig
Wastewater treatment plants (Fig 1 and 2) use different treatment processes to eliminate organic pollutants in the wastewater. One of the most common processes is the activated sludge method, which biologically treats the wastewater through the use of large aeration basins. This process requires the pumping of compressed air into the aeration basins where a diffuser system ensures the air is distributed evenly for optimum treatment. The activated sludge method introduces microorganisms into the...
Tsurumi Provides “Green Clean” for Portuguese Landmark - Tsurumi (Europe)
Cleaning any object of historical or national significance requires precise care and attention and the right tools for the job.This applies even when the object in question is a bridge spanning 344m, sitting 60 m above a river. Add in some strict rules on environmental damage and the challenge looks daunting. But with the help of Tsurumi pumps the landmark Maria Pia Bridge in Porto, Portugal got a fresh clean look and an impressive 98% of water used in the task was removed without disappearing i...
German Water Partnership Adapted Water Solutions Worldwide - Dipl.-Ing. Stefan Girod
The GermanWater Partnership (GWP) is a joint initiative of presently 300 members ranging from a broad variety of companies to specialised associations and scientific research institutes of the German water sector. Functioning as a network, GWP bundles the expertise of the German water industry, science and politics and provides a central contact address for all international requests for such know-how. This unique network of globally oriented German water experts is actively supported by five fe...
Cut Cost with Vacuum Distillation Systems! Don’t Waste Money by Focusing on Investment Cost Only - Dipl.-Ing. Jochen Freund
Which method is the best for the treatment of industrial waste water occurring in my production? Very often it is easy to answer this question: Vacuum distillation. Vacuum distillation is established on the market as most feasible and reliable method for the processing of industrial waste water. But which evaporator is the best one for my application? How can I compare the different vacuum distillation systems on the market? Lifecycle cost analysis (LCC) has proven to be an excellent instru...
New WEDECO AOP Solution from ITT targets Micropollutants - Thomas Holthofer
Growing concerns among scientists, public health agencies, government officials, and the public have prompted added interest worldwide in the potential health effects of increasingly common chemical contaminants that have been finding their way into our water supplies. These contaminants are used in everything from industry to agriculture to medical care. To address this challenge, ITT Corporation, a global leader in the treatment and transport of water and wastewater, announced that it has lau...
Analysis of Life-Cycle Costs of Hydraulic-Driven Piston Pumps - Putzmeister Solid Pumps GmbH
It is common practice on machine tools (and other large capital equipment purchases) to assess the value of a machine beyond its purchase price. The key term here is life-cycle costs (LCC). This analysis is less commonly used when planning for plant and equipment purchasing and design, but the idea has great benefits in over-all long term cost savings In the past, biogas facilities were built with the simplest means. Discarded steel tanks were used for the fermentation of biomass. The produced m...
ProMinent and ProMaqua at IFAT ENTSORGA 2010, Munich - Michael Birmelin
We control it The ProMinent Group, a global supplier of water treatment solutions, is exhibiting at this year’s IFAT. The slogan "We control it" illustrates that ProMinent develops and manufactures more than "just" metering pumps. At IFAT in Munich from 13 – 17 September 2010, the Heidelberg-based company will be presenting solutions for filtering, disinfection, oxidisation, and measurement and control. At stand 425/526 in Hall A3 the company will be showcasing components, systems and technolo...
IFAT Entsorga Opens it’s Doors for Business from 13th to 17th September in Munich, Germany - Messe München
IFAT Entsorga In 2008 IFAT set a new record for attendance, with 2,605 exhibitors from 41 countries and around 120,000 trade visitors from 170 countries. From 2010 onwards Messe München and the BDE will be holding this event as a cooperation. IFAT will in future take place under the name of IFAT ENTSORGA, World’s Leading Trade Fair for Water, Sewage, Waste and Raw Materials Management. The next event takes place at the New Munich Trade Fair Centre from 13 to 17 September 2010. IFAT ENTSORGA is t...
The Smart Alternative to Disposal Process water recycling secures tomorrows earnings - Dipl.-Ing. Jochen Freund
Do you have waste water in your production which cannot be disposed of into the public sewer system? How do you manage this waste water? Often this waste water is disposed of with specialised waste management companies. This is a straightforward procedure not disturbing the day to day business in the production. However; here big saving possibilities are hidden. When processing this water in-house 70 % of the occurring cost can be saved. When processing 2.000 m³ industrial waste water in-house i...
Grundfos Simplifies Pump Pit Management and Reduces Costs with AUTOADAPT - Grundfos
Pumps with AUTOADAPT adapt to all conditions in the pit, eliminating 75% of all service calls and reducing installation and commissioning costs by 50%. Grundfos sewage grinders and drainage, effluent and sewage pumps with AUTOADAPT simplify the pumping of wastewater by removing all external sensors, switches and cables from the pit. Safeguard your wastewater transfer AUTOADAPT is a genuinely intelligent solution bringing innovative and patented solutions to municipal, private and industrial w...
Digital DosingTM Unique Solutions for Challenging Dosing Processes - Matthias Ulmer
Disinfection, neutralisation, precipitation and flocculation are essential physical and chemical processes of water treatment and wastewater recycling. Modern, highly efficient chemicals have to be used economically and with minimal impact on the environment. Some of these chemicals are very difficult to handle, and this overstrains conventional dosing pumps. These challenges can be met by digital dosing pumps with modern drive technology and control software. The chemistry in water treatment,...
Saving Water through Innovative Technology - Mr. Torsten Erwe
Bayer Technology Services is an expert when it comes to treating wastewater. One of its visions for the future is a means of treating heavily contaminated wastewater streams so effectively that they can be returned to production processes for reuse. A sensible way of using a scarce resource. Temperatures in excess of 40oC are nothing out of the ordinary in the Negev desert. The dry heat sometimes makes it difficult even to breathe. Particularly for someone like Henner Schlieper who comes from t...
Pressure and Level in Water Treatment - Mikael Leth Jensen
Having built more than 10,000 plants all over the world serving one billion people, Degrémont has proved itself without doubt to be an expert in the field of water treatment. The company develops and builds facilities such as drinking water production installations, desalination plants, waste water treatment and sewage sludge processing plants for local communities and industries. To ensure the efficient operation of its plants, Degrémont relies on the know-how and expertise of dedicated partner...
E D U R - Multiphase Pumps Innovative Pump Techniques for Handling of Liquid-Gas Mixtures and for Generation of Dispersions
The typical purpose of centrifugal pumps is the transport of pure liquids. However, this ideal application is not often found under real working conditions. In many cases the pumps also have to transport undissolved gas or vapor. The reasons for this may be inadequate installation, like slight leakages in the suction pipe lines, or insufficient liquid levels above the inflow of the suction pipe line in open systems etc. On the other hand, process-bounded requirements must be considered when pres...
Ultrasonic Algae Control Without Chemicals - George Hutchinson
In the 1890’s it was discovered that loud sounds could stop a blue-green algae bloom in its tracks. However, even then most people thought that dynamite was a little extreme for algae control! Then in the early 1920’s during the experimentation that produced sonar, Paul Langevin discovered that these same types of algae were disabled by ultrasound, though most likely due to the very powerful nature of the sonar pulse that created cavitation. Then in the 1970’s it was discovered that gas vesicle...
Time To Wake Up To Progress In Odour Technology - Odour Services International Ltd
As social and economical views on the environment and the way in which we treat our waste are becoming a part of common culture, within the public arena, the importance of odour control is coming to the fore. It can be seen by the increased interest by both Governmental bodies and the media that the issue of odour control is now more apparent. The Introduction of IPPC across a variety of sectors has already led to an increased interest in odour control and this was amplified with the release of...
ABB Process Makes Oily Wastewater Clean Again - Marco Apicella, Nunzio Bonavita, Paolo Capelli, Raimondo Cianfruglia
ABB has developed a new water treatment technology that cleans oily wastewater – by far the largest waste product in oil and gas production - quickly, cost-effectively and energy-efficiently, ready for discharge with zero environmental impact. The Solution Developed on behalf of a leading national oil and gas company, the solution is installed at three oil and gas fields in North Africa where it has achieved some remarkable results and exceeded the customer’s targets in terms of the quality of...
Closing the Loop in the Industrial Water Cycle
Concerns about the environment and the sustainability of the earth’s natural resources have accelerated rapidly to the forefront of global interest. In the midst of a global financial crisis, industrial manufacturing and processing operations are being confronted with the challenge of striking a balance between the environmental impacts of their activities and making a profit. The origins of the global mega-trend of sustainable development can be traced back to the Brundtland Commission’s repor...
Retractable Odor Control Covers Improve Access to Wastewater Tanks at San Francisco Bay Sanitation Plant
The Vallejo Sanitation & Flood Control District, in the San Francisco Bay area, has been engaged in a program to scrub off-gas odors from all aspects of its wastewater treatment plant. Early in the project, the district had covered all of the facilities in its headworks and primary treatment steps to control off-gas. Later, it developed a novel approach for the management and disposal of its biosolids, including designing a specialised hopper for storage of the plant’s dewatered solids and an au...
A Novel Biological Approach for Treatment of Stripped-Sour Water
Crude oil containing sulfur, often in the form of hydrogen sulfide, in excess of 1%, is referred to as sour crude oil. Refineries that process sour crude oil generate sour water in multiple ways. The processes of desalting, fractional distillation in atmospheric or vacuum towers, cracking in thermal or catalytic units, and hydrodesulfurization (HDS) all contribute to a sour water by-product. Other significant sour water contaminants include ammonia, phenol and cyanide. The first level of treatm...
New Environmentally Friendly Enzyme Based Solution for Wastewater Remediation
The effluent generated by livestock at agricultural operations all over both North and South America has a significant environmental footprint that flows far downstream from its source. Most notably present in these effluents, or agricultural runoffs, are manure and urine as well as other contaminants resulting from the continuous requirements and byproducts of livestock production. The increased global population has meant an increased demand for food and a subsequent high demand for livestock...
Solve Your Nitrogen Problems
Nitrogen pollution is a major issue causing eutrophication of fresh water systems. The member states of the EU, as well as most of the developed non-EU countries have, over the past few decades, introduced various programmes to reduce the amount of nitrogen entering their systems, mostly in terms of gradually tightening of wastewater discharge limits. Municipal as well as industrial wastewater treatment plants have found themselves facing the challenge to meet these strict limits using tradition...
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 reactiv...
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 method...
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 practice? This article...
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 en...
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.
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, in...
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 tec...
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 effec...
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 sodium...
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.
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 Australia...
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.