Shannon R. Grant

EVOQUA WATER TECHNOLOGIES · ADI Systems

Darigold, one of North America’s largest dairy co-operatives located in Boise, Idaho, USA generates a high-strength wastewater stream that requires pretreatment prior to discharge to the West Boise Sewer District. In 2009, the wastewater pretreatment system capacity needed to be significantly expanded to accommodate increases in plant production, w...

Dairy processing wastewater generally contains biodegradable organic compounds, high concentrations of fat, oil, and grease (FOG), nutrients, calcium and other inorganic compounds. Dairygold Co-operative Society, a large dairy processing plant in Ireland chose a low-rate anaerobic ADI-BVF® reactor system to integrate with its existing biological nu...

This paper presents a case study for a large industrial wastewater treatment system consisting of anaerobic pre-treatment followed by an aerobic membrane bioreactor (MBR) system. The system discussed is at a major beverage producer in Florida. This paper discusses the treatment performance of the anaerobic and aerobic treatment systems, the technol...

A simulated high-strength [chemical oxygen demand (COD) ~85; 000 mg=L] wastewater containing primarily acrylic acid, acetic acid, and formaldehyde was treated in an anaerobic membrane bioreactor. The reactor consisted of a 25 L complete-mix tank fitted with three Kubota flat-panel membrane cartridges. The reactor was operated at an organic loading...

The anaerobic membrane bioreactor (AnMBR) incorporates anaerobic digestion and membrane filtration in one process to form an innovative technology for treating high-strength industrial wastewater. The first AnMBR installation in North America, also known as the largest AnMBR installation in the world, was built at Ken's Foods in Massachusetts, USA....

A study investigating the effects of temperature and organic loading on the performance of upflow anaerobic sludge blanket reactors was carried out in the laboratory. Laboratory-scale reactors of 3.2 L volume were semicontinuously fed a synthetic substrate consisting of beef consommé and macro- and micro-nutrient compounds. Temperatures ranged from...

This paper presents the performance of an anaerobic membrane bioreactor (AnMBR) treating the wastewater from the production of acrylic acid. Acrylic acid and formaldehyde are present in the wastewater, and these are known to be toxic to anaerobic bacteria. Presently due to the toxicity of this wastewater it is typically incinerated. This study aims...

Tequila production produces a stillage of high COD and TSS strength, which creates environmental problems and deteriorates soil conditions. The new anaerobic membrane bioreactor (AnMBR) process was proposed and a pilot system was accepted by a major tequila manufacturer for treating distillery wastewaters in Jalisco, Mexico. The pilot was operated...

An existing anaerobic process, upgraded to an anaerobic membrane bioreactor (AnMBR) system, was commissioned in July 2008 to treat wastewater produced from salad dressings and barbeque sauce. Upgrading to an AnMBR provided additional capacity for flow and organic load beyond the original anaerobic system design parameters. Lack of space and superio...

This paper presents a case study of a wastewater treatment solution for a specialty snack foods processor. Traditionally, the snack foods processor had been discharging primary clarified effluent to the local publically owned and operated treatment works (POTW). This resulted in expensive surcharges and odors associated with the clarifier.In early...

An existing anaerobic process, upgraded to an anaerobic membrane bioreactor (AnMBR) system, was commissioned in July 2008 to treat wastewater produced from salad dressings and barbeque sauce. Upgrading the existing anaerobic treatment process to an AnMBR was considered the best choice as it reduced operating and maintenance costs, provided stable o...

The objective of the research was to investigate the effects of inducing loading and bacterial stress conditions on the fouling of membranes. Two laboratory-scale flat sheet membrane bioreactors were operated in parallel to treat a synthetic sugar-based industrial wastewater. One reactor served as the control, while the other served as the experime...

Wastewater generated during the rum manufacturing process must be treated prior to its discharge to a receiving water. One rum distillery's onsite wastewater treatment plant consists of an equalization tank followed by four fixed-film anaerobic reactors. The distillery wanted to investigate potential long-term treatment options that would either mo...

A submerged anaerobic membrane bioreactor (sAnMBR) was studied for the treatment of a high organic strength wastewater containing a high level of suspended solids. A 25L reactor was operated, under mesophilic conditions (35°C), for 218 days treating a blend of primary clarifier sludge and centrifuge solids from a potato processing plant. The system...

A high-rate activated sludge (HRAS) bioreactor with high shear venturi aeration was operated in the laboratory at various organic loading rates to evaluate chemical oxygen demand (COD) removal efficiency and sludge production. Organic loading rates two orders of magnitude higher than conventional activated sludge loading were investigated in the mo...

Two laboratory-scale flat sheet membrane bioreactors (FSMBR) with three flat sheet membrane cartridges in each were set up to treat a synthetic biodegradable industrial wastewater. Four stress conditions were employed during the study including different organic loading rates (OLR phase), high salt concentration (salt phase), temperature spikes (te...

Kubota Corporation has constructed five full-scale anaerobic membrane bioreactor (AnMBR) systems in Japan for treatment of stillage from shochu alcohol production. These systems were commissioned from 2006 to 2008. The AnMBR process has been demonstrated to have numerous process advantages over more conventional technologies, such as superior efflu...

A pilot-scale anaerobic membrane bioreactor (AnMBR) system was operated at a salad dressings and barbeque sauce production facility for six months to investigate the suitability of the ADIAnMBR process for upgrading the existing wastewater treatment system to treat additional flow and load. Lack of space and superior economics made converting the e...

The objective of the research was to investigate the effects of inducing loading and bacterial stress conditions on the fouling of the membranes. Two paralleled laboratory-scale flat sheet membrane bioreactors (FSMBR) with three Kubota Type 203 flat membrane cartridges in each were set up to treat a synthetic sugar-based industrial wastewater. One...

A two-year research study was undertaken to demonstrate and optimize the performance of a two and three-stage high-rate membrane bioreactor (MBR) system treating primary clarified potato processing wastewater. Organic loading rates (OLRs) ranged from 1.4 to 6.7 kg COD/m³·d (0.8 to 3.9 kg BOD/m³·d), F:Ms from 0.15 to 0.66 kg COD/kg MLSS·d (0.1 to 0....

This paper summarizes the results of an anaerobic pilot study conducted on-site at the Eastman Chemical Company plant located in Sokolov, Czech Republic. One 800 L ADI-Hybrid pilot reactor was operated for 15 months from February 19, 2003 to May 23, 2004, treating selected petrochemical wastewater generated from the two Acrylic Monomers Plants (acr...

This paper presents a case study of a leading edge wastewater treatment solution for wastewater produced at a specialty potato products processor. Traditionally, the potato processor had been storing wastewater in large on-site tankage, and then applying the wastewater on local farmland during times of the year when weather permitted. However, odor...

A pilot-scale membrane bioreactor (MBR) system was operated at the FMC Marine Colloids Philippines, Inc. carrageenan production facility located in Cebu, Philippines from July to November 2006. Approximately 10,000 to 15,000 kg of salt per day is brought into the carrageenan manufacturing process predominantly from locally harvested seaweed which,...

A novel post-treatment system, jet loop reactor (JLR), was proposed for anaerobic bioreactor effluent polishing purposes. The performance of the JLR, with respect to residual organics, total Kjeldahl nitrogen (TKN) and ammonia-nitrogen removal at different hydraulic retention times (HRTs), was the main focus of this study. The JLR, on average, was...

An innovative anaerobic-aerobic integrated bioreactor system consisting of an upflow anaerobic sludge blanket (UASB) and a jet loop reactor was developed to investigate the feasibility of combined removal of carbon and nitrogen for a low-strength wastewater at different hydraulic retention times (HRTs) and recycle ratios. Total chemical oxygen dema...

There are presently a dozen applications of the patented+ ADI-BVF® reactor treating wastewaters from dairy and cheese processing facilities. ADI defines its BVF reactor® as a lowrate anaerobic upflow sludge bed process. Low-rate anaerobic technology overcomes the obstacles and challenges posed on high-rate anaerobic processes as a result of the hig...

A full-scale two-stage anaerobic hybrid system has been treating raw wastewater from the Eastman polyethylene terephthalate glycol (PETG) production plant in Kuantan, Malaysia, since September 1999. The process includes two identical 8740 gallon (33 m3) hybrid reactors that operate in series, with the effluent of the ‘lead’ reactor serving as the i...

Sludge production from various full-scale and pilot-scale innovative anaerobic and aerobic processes are compared while treating the same wastewater from a potato processing plant in Prince Edward Island, Canada. High-rate activated sludge processes utilize heat from aeration and biological activity, plus the effects of high shear conditions, to de...

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