The City of Albany (City), New York has taken a proactive approach to achieve its general
mission to provide the highest quality water possible to its customers by upgrading treatment and
operations at Loudonville Reservoir. The first phase of the water quality improvement project
was the construction of a 40 million gallon per day (MGD) ultraviolet (UV) disinfection facility.
The UV disinfection facility was installed to operate in conjunction with the existing chlorine
disinfection facility at the site. Incorporation of the UV facility provides multiple barrier
disinfection and facilitates compliance with upcoming requirements for uncovered storage under
the Long Term 2 Enhanced Surface Water Treatment Rule (LT2ESWTR). Construction of the
UV facility began in August 2002, and full-scale continuous operation commenced on April 2,
2003. As of the date of this report, the Loudonville Reservoir UV facility is the largest operating
UV disinfection facility in a drinking water application within New York State. Use of this
technology in the drinking water industry continues to grow and will further expand after the
LT2ESWTR is finalized.
The Albany UV Treatment Facility was constructed and is operated as part of the City's water
quality enhancement program being implemented at Loudonville Reservoir. The UV facility is
part of a dual-barrier disinfection strategy to maximize protection of public health and is one
aspect of the City's ongoing risk mitigation efforts at Loudonville Reservoir to comply with the
upcoming LT2ESWTR. The LT2ESWTR will require systems with uncovered finished water
reservoirs to: cover the finished water reservoir; treat reservoir discharge to the distribution
system to achieve 4-log virus inactivation; or, receive a determination from the State or
Primacy Agency that existing risk mitigation is adequate. Elements of the City's current risk
mitigation include:
ongoing water quality monitoring; annual draining and cleaning of the reservoirs;
periodic batch chlorination of the reservoirs;
perimeter access fencing and 24-hour security surveillance;
bird wires;
diversion of runoff;
re-chlorination; and, UV disinfection.
In late 2002, the New York State Energy Research and Development Authority (NYSERDA)
issued Program Opportunity Notice (PON) 723-02, Municipal Water and Wastewater
Technology, which specifically encouraged projects that targeted energy optimization/evaluation
of UV disinfection systems. The City of Albany and Malcolm Pirnie realized the unique
opportunity that the City's recently constructed UV facility offered with regard to data collection
and energy efficiency assessment and improvement. This project, entitled "Optimizing the
Energy Efficiency of UV Disinfection through On-Site Validation and control Equipment
Maintenance", was funded by NYSERDA under PON 723-02. The project began in late July
2003. Much of this paper is based on the preliminary findings from that ongoing study. Includes 2 references, tables, figures.
| Edition : | Vol. - No. |
| File Size : | 1
file
, 470 KB |
| Note : | This product is unavailable in Ukraine, Russia, Belarus |
| Number of Pages : | 20 |
| Published : | 06/01/2006 |
