Latest Articles & Case Studies - Water & Wastewater

Mobile Water Treatment Trailer

Carbonair — Tue, 29 May 2012 17:30:54 GMT

Carbonair’s mobile water treatment trailer is a perfect fit for a variety of temporary water treatment applications including construction dewatering, groundwater remediation, underground storage tank replacement and pipeline hydrostatic test water treatment.The system consists of four custom designed Carbonair MPC28 Filter Vessels with special internal piping, preceded by a dual multi-round bag filter skid. The filter vessels are equipped with piping and valves to allow for running the...

Latest analytical technology ensures biogas efficiency

Carbonair — Tue, 29 May 2012 06:43:31 GMT

Anaerobic Digestion (AD) relies on the ability of specific micro-organisms to convert organic material into a gas that can be used to generate electricity. However, these bacteria require specific conditions if they are to function effectively and instrumentation specialist company HACH LANGE has developed a range of online, portable and laboratory instruments that have enabled a large number of AD plants to maximise efficiency and prevent the risk of failure. Introduction...

Wetland ecosystem services

Ana Bachurova — Tue, 29 May 2012 06:39:11 GMT

Different types of wetlands play important flood control roles in different situations. In the upper reaches of some river basins, for example, peatlands and wet grassland can act like sponges (saturated peat is typically up to 98% water by mass), absorbing rainfall and allowing it to percolate more slowly into the soil, thereby reducing the speed and volume of runoff entering streams and rivers. This means that water levels in larger channels, further downstream, also rise more slowly and hu...

Why land rights should be on the Rio+20 agenda

Peter Veit;Janet Ranganathan — Mon, 28 May 2012 07:08:00 GMT

As government leaders prepare for next month’s UN Conference on Sustainable Development (Rio+20) in Brazil, one issue is conspicuously absent from the agenda: land rights. Strong property rights—the rights for people to access, control, transfer, and exclude others from land and natural resources—create incentives to invest in sound land management and help protect land from expropriation. Streng...

How deep is your BAF? Evaluation of different bed depths for high rate biological denitrification filters with limit of technology pollutant removal

Mudit Gangal;Christophe Desmottes;Amit Kaldate;Sunil Mehta — Mon, 28 May 2012 06:56:52 GMT

Downflow Denitrification Filters are tertiary water and waste water treatment systems that allow denitrification and suspended solids removal to occur in a single step and allow limit of technology pollutant removal. With more and more stringent nutrient removal regulations coming up, downflow denitrification filters have increasingly become the solution of choice for plants faced with the dilemma of installing a robust system to tackle the new treatment goals without breaking the bank. ...

Tomato Processor Pilot Bioreactor

Mudit Gangal;Christophe Desmottes;Amit Kaldate;Sunil Mehta — Fri, 25 May 2012 13:45:32 GMT

98% Average Reduction in BOD & TSS A tomato processing facility was required by the city to reduce BOD from 4,000 ppm to 200 ppm. Integrated Engineers proposed a small scale Bioreactor to prove the effectiveness of the activated sludge process on the customer’s wastewater as well as establishing the parameters for a full scale system design. The trailer mounted bioreactor utilizes an activated sludge process with pure oxygen instead of the traditiona...

Tortilla Manufacturer Wastewater Case Study

Mudit Gangal;Christophe Desmottes;Amit Kaldate;Sunil Mehta — Fri, 25 May 2012 13:45:01 GMT

TSS Drops from 1,883 ppm to 14 ppm This facility manufactures corn tortillas using a solution of Lye to peel the skin from the corn and soften the corn. The pH of the sample was received at 13.80 indicating a high basic solution. To minimize operating costs, CO2 was used to drop the pH down to 8.0 instead of using the traditional acid. The high pH water required about 5 minutes of sparging with the CO2 in order to drop the pH. Floccin 1105 was ...

Latex Manufacturer Wastewater Case Study

Mudit Gangal;Christophe Desmottes;Amit Kaldate;Sunil Mehta — Fri, 25 May 2012 13:44:25 GMT

Targeting TSS and Achieving Clarity The wastewater sample when received was a pH of 10.3. The request for a wastewater solution was to remove TSS and obtain better water clarity. Various Floccin blends were used until the water clarity was acceptable. Better results were obtained combining the two types of wastewater and performing the jar test. The recommended treatment is to use Floccin 1119 first at 4 lbs. per 1,000 gallons and add a small a...

Tuna Processing & Protein Recovery Wastewater Case Study

Mudit Gangal;Christophe Desmottes;Amit Kaldate;Sunil Mehta — Fri, 25 May 2012 13:44:02 GMT

99% Reduction in TSS - 91% BOD - 7.5% Protein Recovery The water from a tuna processing facility was treated for solids reduction, BOD reduction and recovery of the protein from the high protein rendering sludge for reuse as animal feed. The protein is very valuable for use in the animal food industry. Currently the facility has no process for recovery of the protein and 100% of the high protein rendering sludge is disposed of at the local landfill, co...

Metal Machining Facility Wastewater Treatment Case Study

Mudit Gangal;Christophe Desmottes;Amit Kaldate;Sunil Mehta — Fri, 25 May 2012 13:43:11 GMT

Effective Breaking of the Oil Emulsion in Machine Shop Wastewater This is the result of our Floccin 1105 product treating a sample from a Metal machining facility. The sample was at a pH of 9 and CO2 was added to bring the pH down to neutral (pH at 7). The Floccin 1105 was very effective at clarifying the waste, breaking the strong oil emulsion and capturing the oil. The dosage was minimal with the Floccin addition (~ 1g/1000ml)....

Oily Wastewater Processing Facility Wastewater Treatment Case Study

Mudit Gangal;Christophe Desmottes;Amit Kaldate;Sunil Mehta — Fri, 25 May 2012 13:42:42 GMT

Impressive Oil Water Separation This is the result of our Floccin 1105 product treating a sample from an oily wastewater treatment facility. As you can see, the Floccin 1105 was very effective at clarifying the waste as well as capturing all of the oil. These results were achieved with no pH adjustment and minimal Floccin addition (~ 1g/1000ml). The client is going to purchase and install a CFU-20 to treat their 6,000 gallons/day and will either reuse the wate...

FRAC Operations Treatability Report Wastewater Treatment Case Study

Mudit Gangal;Christophe Desmottes;Amit Kaldate;Sunil Mehta — Fri, 25 May 2012 13:41:59 GMT

Impressive Oil Water SeparationScenario The water sample from a CUDD Energy oil field site was treated for solids reduction, BOD reduction, metals and dissolved metals. Conclusion The treatability shows the high removal rate for heavy metals, minimal increase in EC/TDS as shown in the anions/cations and high removal of particulate solids in the form of suspended solids. Increases are shown as negative percent reductions and are t...

Meat Processing Plant Wastewater

Mudit Gangal;Christophe Desmottes;Amit Kaldate;Sunil Mehta — Fri, 25 May 2012 13:40:26 GMT

Traditional Alum & Polymer versus Floccin 1106 The wastewater is currently being treated using conventional chemistry (alum and a polymer). The facility is paying surcharges due to levels of COD at 1,600 ppm and suspended solids TSS) at 500 ppm. The surcharge rates for the local POTW (Publicly Owned Treatment Works) are based on $0.42/lb for TSS and $0.18/lb. for COD. Based on their daily flow of 200,000 gpd, they pay a daily surcharge of $830/day. ...

Sulfur Compounds Analyzer MEXA-1170SX

Shinichi Murakami — Fri, 25 May 2012 12:24:34 GMT

The MEXA-1170SX is a continuous gas analyzer for sulfur compounds existing in engine emissions. It can measure SO2 concentration and the amount of total reduced sulfur compounds (TRS), such as H2S, separately. It can also measure the total sulfur compounds (TS) that contains both gaseous compounds and liquid compounds in PM, such as SO3. By utilizing ultra-violet fluorescence (UVF) method and various original analysis techniques such as ozone injection, the MEXA-1170SX achieves reliable measu...

Wind Tunnel Balance System for Vehicle Aerodynamic Developments

Hans Vogt — Fri, 25 May 2012 11:59:25 GMT

In vehicle development steps, optimization of aerodynamic properties is often carried out in wind tunnel facilities. The vehicle is placed upon the measuring platform of the balance. The wind tunnel balance now allows the precise measurement of six forces and moments induced by the air flow. The HORIBA wind tunnel balance system can be equipped with a moving ground system which makes the air flow at the underside and around the wheels much more realistic. This moving ground system is built up...

Constructed Wetlands I

Hans Vogt — Fri, 25 May 2012 08:48:52 GMT

Traditional constructed wetland are shallow planted basins for cleaning anthropogenic discharges (wastewater or polluted runoff). They were used for cleaning of: domestic wastewater agricultural wastewater coal mine drainage stormwater runoff The main construction elements were: inflow ( e.g. sedimentation part) substrat (soil or gravel) with plants (marsh or water plants) discharge (different stru...

European bathing water quality in 2011

Hans Vogt — Fri, 25 May 2012 08:45:07 GMT

Europeans care about water quality and knowing that they have clean and safe water to swim or play in is an important factor in their choice of a holiday or weekend destination. For the tourism industry, clean and safe water is also a major factor in attracting visitors to an area. To allow Europeans to make an informed choice, the European Environment Agency and the European Commission publish an annual report on the quality of more than 22 000 bathing sites. In 2012 the report includes site...

Mining Water Treatment & Water Recycling

Hans Vogt — Fri, 25 May 2012 07:09:06 GMT

Mining Water Treatment & Water Recycling H2O Cleanawater has worked with Australia`s mining companies for over 16 years providing waste water treatment and water recycling solutions for wash down, workshop and refuelling area applications. Oil Separators that are Pre-Plumbed and Pre-Wired Air Operated Systems to Suit Below Ground Environments ...

Large Volume Splitless Injection Using an Unmodified Split/Splitless Inlet and GC-TOFMS for Pesticides and Brominated Flame Retardants

Michelle Misselwitz;Jack Cochran — Fri, 25 May 2012 07:03:14 GMT

AbstractLarge volume splitless injection for gas chromatography typically requires a special injection port, for example, a programmable temperature vaporizer (PTV), but an alternative setup using concurrent solvent recondensation–large volume splitless injection (CSR-LVSI) and a split/splitless injection port has been reported. This technique was used here, both with and without sample extract concentration, to analyze pesticides and brominated flame retardants i...

Why we need sustainable development goals

Paula Caballero Gómez — Thu, 24 May 2012 18:19:25 GMT

Rio+20 must launch SDGs to guide countries through complex development challenges, argues Colombian ministry official Paula Caballero Gómez.Despite countries` growing commitment to alternative energy and more efficient use of resources, twenty years after the Earth Summit sustainable development is still seen by many as an idea rooted in environmental concerns.This creates a fundamental disconnect between proponents of sustainability and those who, leaving envir...

Huckabay Ridge

Paula Caballero Gómez — Thu, 24 May 2012 15:19:40 GMT

Location: Stephenville, TXOnline date: November 2006Acquisition Date: November 2010In 2010 Element Markets acquired the largest anaerobic digestion facility in North America through its wholly owned subsidiary EM Biogas. The Huckabay Ridge Anaerobic Digestion Project, located in a large dairy community in Stephenville, Texas, turns manure and substrate (glycerin, grease trap and other organic waste) into biomethane (me...

Case study – oil removal from central collection basin

Paula Caballero Gómez — Wed, 23 May 2012 19:20:36 GMT

Customer Profile:Largest manufacturer of newspaper stock and toilet tissue in Toronto, Canada using recycled paper as the primary ingredient in their production process. Customer collects paper, newsprint and magazines from “blue boxes” and other sources throughout Ontario Province. Customer separates the paper collected and makes recycled paper products. The Problem:Customer has se...

Case study - oil removal prior to evaporation

Paula Caballero Gómez — Wed, 23 May 2012 19:15:19 GMT

Customer:Locomotive Service Company located in Texas - repair and maintenance of railroad locomotives and cars. The Problem:Customer installed a water evaporator system to reduce waste water volume and disposal costs. Evaporator system included a small oil/water settling tank, but no oil skimming system. Customer needed an automatic oil skimming system to continually remove the free-floating oil and grease prior...

Case study - oil removal from oil water separator

Paula Caballero Gómez — Wed, 23 May 2012 19:08:40 GMT

Customer:Food Processor; forming and precooking prepared food items for the fast food industry. Plant located in Upstate New York. The Problem:Customer operates three shifts of production. The third shift is responsible for washing and sanitizing all food process equipment and surrounding areas. Oil and grease from sausage and hamburger cookers, and drippings on the plant floor from other sources, are wash...

Case study - tramp oil

Paula Caballero Gómez — Wed, 23 May 2012 18:42:26 GMT

Customer:Midwestern Manufacturer of metal stampings and machined parts for the Automotive Industry. The Problem:Tramp Oil collecting in metal working coolant. Raises oil concentration levels to unacceptably high levels, adversely effects product quality, promotes bacterial growth which can lead to worker skin disorders. Cutting tools leave burn marks on the part due to high oil levels, which becomes a perceived ...