DCWASA CASE STUDY



Client approval: Yes        No

Note whether your case study needs to be ready in time for a specific event...

Customer profile
 Customer name           District of Columbia Water and Sewer Authority
 Division          ...

Case Study for: District of Columbia Water And Sewer Authority

Company profile
From 1938 to 1996, the Dist...

Technical Evaluation/Testing

DCWASA has been plagued with chronic flow path problems for several years in ...

Quality Assurance Solution

After an initial application of EcoBiotix in selected 12” and 24” lines over a p...


The industrial use of microbes and enzymes has increased greatly during the last several years.

Products and Services Your Company Employs

Ecobiotix is a superior microbial and enzymatic product technolo...
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Dcwasa Fog Final Case Study


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Dcwasa Fog Final Case Study

  1. 1. CASE STUDY DCWASA CASE STUDY Of F.O.G. Version 1.0: 08.23.10 Presented by: Tyrone K. Duggins President & CEO Direct 202-441-0419 Disclaimer Any case studies, testimonials, examples and illustrations cannot guarantee that the user will achieve similar results. In fact, your results may vary significantly and factors such as your market, personal commitment, environmental factors and many other circumstances may and will cause results to vary.
  2. 2. CASE STUDY Client approval: Yes No Note whether your case study needs to be ready in time for a specific event: Date: 08/23/2010 Event: Wastewater Project Proposal Your company information Branch Cornerstone Environmental Technologies Incorporated Address P.O. Box 905 City, state, ZIP Code Mount Airy, MD 21771 Phone number 301-829-8990 Fax number 866-295-6950 Contact name Tyrone K. Duggins Title President & CEO Phone number 202-441-0419 Fax number 866 295 6950 E-mail address Solution group CETI Customer Solution Group Solution offering Project name or title Wastewater Project Proposal CETI CONFIDENTIAL PAGE 2
  3. 3. CASE STUDY Customer profile Customer name District of Columbia Water and Sewer Authority Division Pumping Station Address 5000 Overlook Avenue S.W. City, state, ZIP Code Washington, D.C. 20032 Phone number 202-787-2000 (M-F 8 a.m. to 5 p.m.) Fax number 202-787-2333 Web site address Industry Wastewater Treatment Number of employees 1000 Annual revenue $345,000,000 Contact name David Davis Title Technician Phone number (202) 812-0380 Fax number 202-787-2333 E-mail address CETI CONFIDENTIAL PAGE 3
  4. 4. CASE STUDY Case Study for: District of Columbia Water And Sewer Authority Company profile From 1938 to 1996, the District of Columbia Water and Sewer Utility Administration was part of the District Government. In 1996, the District Government initiated the creation of the District of Columbia Water and Sewer Authority (DC WASA), an independent authority of the District of Columbia providing services to the region. On April 18, 1996, following a 30-day Congressional review period, the District Council enacted DC Law 11-111, "The Water and Sewer Authority Establishment and Department of Public Works Reorganization Act of 1996." DC WASA began a renewal period to improve delivery of water and wastewater treatment services to the District and regional customers and to improve and replace the water and sewer infrastructure. Like many older East Coast cities, Washington, DC's aging water and sewer infrastructure was in dire need of major renovations and general maintenance. Among other operational changes, DC WASA's finances were no longer tied to the District's overall budget. This marked a positive change for the organization and its customers since every dollar collected by DC WASA could then be reinvested into operations and capital improvements. Funding for operations, improvements and debt financing now comes through user fees, grants an Revised FY 2010 operating budget totals $382.3 million the sale of revenue bonds. In 2010, DC WASA initiated a rebranding campaign and is now known as DC Water. The lifetime budget for the Water Service Area (including Meter Replacement / AMR installation) is $1.2 billion, an increase of $192 million from last year's Cost Improvement Program (C.l.P.) This is primarily driven by the increase of more than $300 million associated with the Water Facility Plan This update was competed in FY 2009, offset by a reduction of $97 million from the lead service line replacement program. This document provided the basis for a ramp up, beginning in FY 2010 with an increase of $14.5 million, of the replacement of one percent of the water infrastructure per year. Business Assessment Sewer blockages and overflows often lead to costly maintenance. The current median age of small diameter water mains is 74 years old, and 180 miles of pipe are greater than 100 years old. Unlined cast iron pipe accounts for 740 miles. Calculated in 2008 dollars, this will require over $2.6 billion for replacement/rehabilitation...Currently, DCWASA is replacing small mains at a renewal rate of 0.35% per year or about 4 miles per year…this needs to be increased to a minimum replacement rate of 1% or about 1.1 miles per year at a cost of at least $30 million annually. Key recommendations of 2009 Water Facilities Plan Update: Continue a two-pronged, parallel approach to the CIP program - implement identified projects resulting from ongoing system condition and needs assessment and increase and continue an annual water main renewal program. Based on a 20-year planning horizon, this will require over a $900 million increase (2008 dollars) in capital spending that addresses currently identified projects for ($2l7million) and a minimum recommended water main renewal of (1% replacement rehab) program ($700 million). - Plan work holistically, e.g. plan valve, fire hydrant and lead service replacements in conjunction with location-specific water main replacements as well as sewer needs and the work of outside agencies working in public space. CETI CONFIDENTIAL PAGE 4
  5. 5. CASE STUDY Technical Evaluation/Testing DCWASA has been plagued with chronic flow path problems for several years in its sanitation sewer lines in the District of Columbia. FOG (Fats, Oil and Grease) has been identified as one of the major causes for sewer backups and overflows. These backups and overflows can be the result of grease buildups that can cause property damage, environmental problems, and other health hazards. FOG gets into the sewers mainly from commercial food preparation establishments that do not have adequate grease control measures in place, such as grease interceptors. All too often, FOG is washed into the plumbing system, usually through kitchen sinks and floor drains in food preparation areas and sticks to the inside of storm or sewer pipes on both private and public space. Over time, it builds up and eventually blocks the entire pipe, causing sewage backups and overflows. DCWASA is often faced with the introduction of pollutants into its wastewater system. Those pollutants include, but are not limited to: Polycyclic Aromatic Hydrocarbons or (PAHs) that can be pyrogenic in addition to petrogenic in nature…these pollutants can create fire and explosion hazards in the wastewater system. Some of these pollutants include, but are not limited to: gasoline, oil, antifreeze, kerosene, peroxides sulfides to name a few. Those conditions exist when said contaminants reach a prohibitive level in the waste stream flow path and have a closed-cup flashpoint of less than 140 degrees Fahrenheit or 60 degrees Centigrade. Additionally, problems faced by these facilities include pollutants which have corrosive properties capable of damaging or creating a hazard to structures, equipment, processes and personnel of the District’s wastewater system, including, but not limited to, discharges with a pH of less than 5, or greater than 10. Based on current water quality testing, DC WASA is fully compliant with water quality regulations; however, tuberculation, which is characteristic in old, unlined pipes, can result in discolored water, taste and odor problems, turbidity, low chlorine residual and increases in potential for bio-films. Moreover, bio- solids and viscous substances with a specific gravity greater than 2.50 may cause or contribute to obstruction of the flow path in a sewer or otherwise interfere with the operation of the wastewater system which include, but are not limited to, grease, blood, spent lime, gas, tar, fuel, lubricating oil etc. These are also identified as substances which are oxygen demanding pollutants, that will inhibit the biological activity of processes in the Districts wastewater system and when released in discharges at a flow rate, or concentration or combination of both can often result in the presence of toxic, noxious or malodorous substances which are capable of creating a public nuisance or hazard to humans, animals and the general public. Clogged sewers can lead to overflows into the street which eventually enters the storm drain system. At that point, the overflow may be carried to local creeks and rivers, creating health risks for swimmers, fish and plant life. Additionally, sewer blockages and overflows can lead to costly maintenance. Sewer lines were found to contain Benzene, Dichloromethane, Tetrachloroethane, Toluene, Chloroethylene, Chrysene, Anthracene, 2-Chlorophenol, 1, 1-Dichloroethylene, 1, 2-Dichlorobenzene, Fluorene, Pyrene, Napththalene and Chlorobenzene to name a few. Based on the information DC Water faces significant problems with B.O.D. & C.O.D. problems, while, fats, oil, grease and other petroleum based products are being introduced into their system daily. Their attempt to remedy this problem resulted in corrosion damage to the washers in the jetters. The frontline staff and workers that are frequently in the ‘hole’ spoke to us about a granular formulation that is currently being used that creates an extremely caustic vapor that has a severe reaction when water is added to it. The mist and/vapors reportedly caused a severe chemical reaction that caused burning and lingering irritation to workers’ eyes and a burning sensation in their nasal septum’s. The workers stated that their need to wear protective wear was as much for protection from the hazardous material being used to break up the FOG element in the system as for the presence of the grease, oils and sludge that was present. CETI CONFIDENTIAL PAGE 5
  6. 6. CASE STUDY Quality Assurance Solution After an initial application of EcoBiotix in selected 12” and 24” lines over a period of 24--72 hours, the presence of very dense grease and other bio-solids in the lines was reduced by an estimated 75%. The water pressure was restored and eventually gravity has been able to restore downstream flow in the affected areas. There has been very little buildup since using the product in those lines. This is due to the presence of selective and naturally occurring microbes, which create a microbial barrier in the lines and continue to feed downstream in those lines. Incidentally, the product which is apparently and completely non-corrosive did no damage to the jetters, which are in, on-line use, on their trucks. The first use of Ecobiotix occurred during the cold season and the use of the ‘other’ product was deemed necessary because the cold weather was considered a negative factor regarding enzymatic products up until now. The prevailing thought was that a caustic material might be needed to get movement on the grease. Ecobiotix has proven to refute that theory, or prior condition. It can be applied directly into the water lines, via manholes or by removal of pipe sections when necessary and comes in a ready to use formulation that does not require mixing. Ecobiotix is also being used as a powerful disinfectant throughout the pumping station as well. Eco-toxicity—Ecobiotix is not toxic to marine life and can be applied at such a dosage so as not to create exposure threats that cause the gills of fish to be damaged or for respiration to otherwise be reduced. Respiratory damage is a typical reaction and outcome to using the present class of dispersants approved for use in domestic oil spills. Ecobiotix has undergone Whole Effluent Toxicity Tests—having passed with 95% confidence on the Chronic Pass/Fail and Acute LC50. The organisms tested were: Ceriodaphnia Dubia and Pimephales Promelas (Fathead Minnows). The Acute tests are short-term tests, usually 96 hours or less. The acute test determines if the effluent would be lethal to aquatic life and measures whether the fathead minnows and Ceriodaphnia live or die. The testing protocols have strict test conditions that include a constant temperature, specific light quality and intensity, dissolved oxygen requirements, etc. Additionally, Ecobiotix has undergone EPA Test Method 625 modified for: Chrysene, Ethanol, 2-Butoxy, 2-Propanol, 1-Butoxy, Dodecane, Pentadecane, Triacontane, Octacosane, Tridecane, Tetradecane, Eiconsane, Hexadecane, Pentadecane, 2, 6, 10, 14-Tetramethyl, Heptadecane, Octadecane, Nonadecane, Tricosane, & Hexatriacontane. 15mL of sample was extracted two times with 5mL dichloromethane. Extracts were then pooled and concentrated to 1.0mL. 20mg/L internal standard mix was used for quantization. Ecobiotix has been tested for and received a certificate of analysis for treating Frac Mud and Frac Water. The hydrocarbon content in the Frac Mud was reduced by 21% over a 48 hour period employing a 5% dilution of Ecobiotix using the EPA 8015B Test method. CETI has also had the Louisiana Raw Crude Oil from the Gulf of Mexico’s Deepwater Horizon spill tested as well. The test employed was EPA Test 8260B which can be provided upon request. Ecobiotix was administered over a five day testing phase while demonstrating a 5% reduction of total hydrocarbons from Benzene, Bromoform, Trichloroethane, Vinyl Chloride, Toluene, Chloroform, Styrene to Xylene among a range of many others. There were 0ver 60x hydrocarbons and other compounds identified in the crude oil sample provided from the Gulf, some of it weathered and very, very viscous and thick….almost asphaltic or tar like. The samples received were in salt water with a very, very pungent odor. Ecobiotix has degraded and eliminated the mal-olfactory challenge as well and this outcome was achieved in 5 days. It is an odor eliminator as well as a waste degrader. CETI CONFIDENTIAL PAGE 6
  7. 7. CASE STUDY Benefits The industrial use of microbes and enzymes has increased greatly during the last several years. Prospects are excellent for continuing increased usage of presently utilized microbes and enzymes in present applications and in new uses. Microbial and enzymatic cultures have several distinct advantages for use in industrial processes: 1. They are of natural origin and are non-toxic. 2. They have great utility and specificity of action; hence can bring about reactions not otherwise easily carried out. 3. They work best under mild conditions of ambient temperature and near neutral pH, thus not requiring drastic conditions of high temperature, high pressure, high acidity and the like, which necessitate special expensive equipment. 4. They act rapidly at relatively low concentrations and the rate of reaction can be readily controlled by adjusting temperature, pH and the amount of microbes and enzymes employed. 5. They are easily inactivated when a reaction has gone as far as desired. Because of these inherent advantages, many industries are keenly interested in adapting microbial & enzymatic methods to the requirements of their processes. Examples of some applications under intensive investigation include: removing hair from and degreasing hides and pelts, as well as, improving the soaking and liming effect in the leather-making process. Additionally, in the pulp and paper industry, liquid enzyme preparations have proven to be particularly useful in reducing pitch deposits on rolls and other equipment during the production process. There are also specific strains of microbes used in waste treatment products which are specifically developed for the degradation of waste. The benefits include grease removal and having the ability of degrading hydrocarbons and other waste materials that may adhere to industrial equipment and in collection systems as well as improved degradation in waste treatment systems. An additional use includes the de-inking process, whereby, the enzymes dislodge ink from fiber surfaces and disperse ink particles to a finite size for greater utility of cleaning. Our composition is comprised of microbes which are specifically adapted for high production of extracellular enzymes, producing bacteria that are both aerobic and anaerobic so that they will propagate with or without air in its environment. They also have a preservative system to prevent contamination by outside vegetative organisms. These are but some of the advantages of Ecobiotix. Of importance to note is that Ecobiotix has now been demonstrated to degrade Polycyclic Aromatic Hydrocarbons or (PAHs). PAHs are the class of hydrocarbons containing 2 or more fused aromatic hydrocarbons. These compounds are environmentally harmful as they can be carcinogenic or mutagenic. Due to their abundance in the environment with comparatively simple detect ability and toxicity to mammals and aquatic organisms, the USEPA has included in the priority list of pollutants, 16 non-substituted PAHs as indicators of PAH pollution. They include: naphthalene, acenaphthylene, acenaphthene, anthrax-cene, phenanthrene, fluorene, pyrene, benzo[a]anthraxcene, fluoranthene, chrysene, dibenzo[a,h]anthraxcene, benzo[a]pyrene, 2-Methylnapthalene, [b]fluoranthene, benzo[k]fluoranthene, benzo[g,h,i]perylene and indeno[1,2,3-cd]pyrene. The use of Ecobiotix takes into account, a relatively short operational period of time, degradation of contaminants below detection levels and lower overall cost. Another recent application of enzymes and microbes has been in clinical test reagents. Additional developments in this field can be expected. CETI CONFIDENTIAL PAGE 7
  8. 8. CASE STUDY Products and Services Your Company Employs Ecobiotix is a superior microbial and enzymatic product technology that employs multiple microbial strains that are specifically adapted for high production of extracellular enzymes producing bacteria that are both aerobic and anaerobic so that they will propagate with or without air in its environment. Ecobiotix is incorporated in a suitable form to be conveniently added to liquid detergents in liquid form or as slurry. By design Ecobiotix includes bio-surfactants and specific micro-organisms which provide for greater utility in high temperature or cold temperature environments. Ecobiotix offers microbial and enzymatic cultures which have greater utility in salt water environments as well as in a corrosive environment. Services Provided By Companies Other Than C.E.T.I. CETI utilizes or will utilize the testing services of:  Martel Labs  Fredericktown Labs, Inc.  WSSC Laboratory Services Group  Bio-Aquatic Testing, Inc.  Penniman & Browne, Inc.  Mettler-Toledo CETI CONFIDENTIAL PAGE 8