- Ordinance Bans Self-Regenerating
Water Softeners
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Cleaning Automatic Bar Screen
- Top Picks at Amazon.com
- Ask Tom! Column!
- Haestad Introduces New Course On
Civil Engineering Ethics
- 46,000 Visitors in January
- Hydroxyl Awarded Contract for
Lakeview WWTP Upgrade
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From
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SANTA CLARITA, Calif.--(BUSINESS
WIRE)--Feb. 25, 2003--Santa Clarita Valley residents will soon be
prohibited from installing self-regenerating water softeners,
including new and replacement units, in their homes due to an
ordinance passed today by Sanitation Districts No. 26 and No. 32 of
Los Angeles County. Districts No. 26 and No. 32 service the
wastewater treatment and disposal needs of the Santa Clarita Valley.
The ordinance was passed by the
Sanitation Districts' Boards of Directors in an effort to reduce the
amount of chloride being discharged into the Santa Clara River. The
new ordinance prohibits the installation of residential
self-regenerating water softeners and is the first such ordinance to
be enacted under a California state law which became effective on
Jan. 1, 2003. The ordinance does not apply to water softeners that
use exchange tanks that are regenerated off-site.
Chloride is one of the main parts of
sodium chloride, commonly known as table salt or rock salt.
Self-regenerating water softeners discharge a salty waste that
contains large amounts of chloride. Wastewater from homes in the
Santa Clarita Valley, including the salty softener waste, is treated
at the Sanitation Districts' Saugus and Valencia Water Reclamation
Plants. After extensive treatment, which does not remove chloride
from wastewater, the treated water is put into the Santa Clara
River.
"The concentration of chloride
in the Santa Clara River is rising and needs to be significantly
reduced to meet water quality standards," indicated Jim Stahl,
Chief Engineer and General Manager of the Sanitation Districts.
"Our research demonstrates that two-thirds of the chloride
added to sewers by Santa Clarita Valley residents is from
self-regenerating water softeners. Virtually all of the chloride
added as rock salt to self-regenerating water softeners ends up in
the Santa Clara River."
If the amount of chloride entering
sewers in the Santa Clarita Valley is not reduced through banning
new residential self-regenerating water softeners, the Sanitation
Districts may have to install new treatment equipment at the Saugus
and Valencia Water Reclamation Plants to remove the chloride. This
would cost in excess of $400 million. "If extra treatment is
required at the water reclamation plants, the cost would have to be
passed on to Santa Clarita Valley residences and businesses. We
estimate that the sewer bills would increase by four to five times
the current rate," added Stahl.
"Our hope is that this ordinance
will help us avoid installing this very expensive treatment
alternative at ratepayers' expense, while protecting the Santa Clara
River and its natural habitat," said City of Santa Clarita
Mayor Cameron Smyth, who is also Chairperson of Sanitation Districts
No. 26 and No. 32.
Residents who violate the new
ordinance will be subject to a fine of up to $1,000 and/or
imprisonment not to exceed 30 days. The Sanitation Districts will be
responsible for enforcing the ordinance. Only residences served by
Sanitation Districts No. 26 and No. 32 are affected by the
ordinance. Santa Clarita businesses have been banned from using
self-regenerating water softeners since 1962.
The Districts are a group of 25
independent special districts serving the wastewater and solid waste
management needs of over 5 million people in Los Angeles County. The
Districts' service area includes 78 cities and unincorporated
territory within the county, including the Santa Clarita Valley. The
role of the Districts is to construct, operate, and maintain
regional systems to collect, treat, and dispose of wastewater and to
provide for management of solid wastes. The Directors of the 25
separate districts are the mayors and certain council members of the
cities within a district and the Chairperson of the County Board of
Supervisors for unincorporated areas.
CONTACT: Sanitation Districts of Los
Angeles County 562/699-7411 Margie Nellor, Ext. 2502 Don Avila, Ext.
2304
Flow
Rates to 50MGD
Easy-to-Install, Self
Cleaning Automatic Bar Screen
Livingston, NJ --The
Auto-Rake is a unique mechanical bar screen that employs the latest
technology to efficiently remove solids from liquid channels. The
unit's design coordinates the motion of a sliding rake cylinder and a
pivoted boom, creating a smooth and versatile raking motion.
Unlike
other bar screen designs, the Auto-Rake has no exposed drive
components that can corrode, wear or become misaligned. Instead, the
unit is housed in a fully sealed boom assembly, making it ideally
suited for severe weather and operating conditions.
The Auto-Rake can handle
flow rates up to 50 mgd. and is easily installed into new or existing
channels. The Auto-Rake replaces manually operated raking systems,
improving plant operations and reducing cost and maintenance. The unit
can be installed in new or existing channels and can be configured
with auxiliary lift conveyors, dewatering equipment and grinders to
meet any requirement.
We Need Your Guest Articles!
Do you have an area of expertise in water and wastewater treatment, have you solved a difficult
problem? Share your knowledge with others and promote yourself
by contributing an article to the Ask Tom! Column.
For more information, please contact
Tom Keenan at: info@nesa.ie
Continuing
Ed.
Haestad Introduces New Course On
Civil Engineering Ethics
WATERBURY, CT, USA--February 24,
2003--Today, Haestad Methods announced that it is offering a new
course in ethics designed for civil engineers and engineering
managers. Ethics for the Practicing Civil Engineer is designed to
satisfy the ethics component for states that require Continuing
Education Units (CEUs) for Professional Engineer (P.E.) license
renewal, and it provides real-world case studies that apply ethics
to engineering decision-making processes.
"This new ethics course is an
important and necessary addition to our continuing education
curriculum," noted Nicole Beckom, Director of Continuing
Education for Haestad Methods. "We're honored to be offering
our clients a course on ethical values and priorities and believe
that it will help build an even stronger civil engineering
community."
Ethics for the Practicing Civil
Engineer will be presented by Dr. Ray W. James, P.E., Director of
Student Services at Texas A&M University. Dr. James has more
than 23 years of experience teaching civil engineering and
engineering ethics courses to university level and senior-level
professionals throughout the United States.
The first round of training will be
held on March 13, in Charlotte, NC and on April 3, in New Orleans,
LA. Future training dates and locations will be announced this
spring.
The material is presented using an
ideal mix of lecture and group discussions designed to expose
attendees to a broad range of concepts dealing with professional
ethics and the legal responsibilities of the professional engineer.
This course demonstrates a method of identification and
classification of ethical conflicts that may arise in the practice
of engineering and offers a methodical approach to the analysis and
resolution of such ethical conflicts.
Numerous real-world case studies are
presented to highlight the principals and methods presented. Design
engineers, project managers, reviewers, and engineering managers
will find the course to be relevant to issues that affect their
routine professional duties.
Course Highlights:
Overview of the legal
responsibilities of engineers
Laws concerning engineering
registration
Ethical responsibilities of
engineers
Introduction to methods for
identifying, analyzing, and resolving ethical conflicts
Course principles highlighted with
case studies.
Each attendee will receive 0.8
Continuing Education Units (CEUs)/8 Professional Development Hours
(PDHs), a certification plaque, and a course notebook. Professionals
interested in attending Ethics for the Practicing Civil Engineer can
view complete course agendas and registration information by
visiting www.haestad.com/ced/workshops/ethics
, calling 1-800-727-6555 (U.S. or Canada) or +1-203-755-1666
(worldwide), or e-mailing training@haestad.com
46,000+
Visitors in January!
Bingo
Cards Leads Aren't What They Used to Be!
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about it -- who wants to take a chance on magazine "bingo
card" leads that are 2-3 months old? Our sponsors get the
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they specify or recommend equipment and services for their plant
and other locations.
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Hybrid
Approach
Hydroxyl Awarded Contract for
Lakeview WWTP Upgrade
Sidney, British Columbia -- The
Region of Peel, Ontario, encompassing the cities of Mississauga and
Brampton in the metro Toronto area, has awarded a contract to
Hydroxyl Systems Inc. for supply of key equipment for the first
phase of a major project at the 103 MGD Lakeview Wastewater
Treatment Plant. The overall project will upgrade the capacity of
the plant to 118 MGD and enhance treatment performance.
The
contract award was the result of a competitive bid process, preceded
by a comprehensive evaluation of various secondary treatment
technologies. The evaluation determined that an upgrade utilizing a
hybrid approach of fluidized fixed-film carriers and conventional
activated sludge technology, generally referred to as IFAS, was
ideal for the expansion of the Lakeview WWTP. This approach enables
the municipal wastewater treatment plant to significantly upgrade
treatment performance and capacity with minimal downtime or physical
modifications to the existing plant.
The project entails the supply of
Hydroxyl-Pac media, a proprietary suspended plastic biofilm carrier
employed in Hydroxyl's unique Fluidized Fixed-Film and Return
Activated Sludge (F³RAS) process. Hydroxyl Systems will also design
and supply related equipment for the implementation of the
Hydroxyl-F³RAS technology at Lakeview WWTP.
Start-up of this project is scheduled
for June 2003. Following a period of operation of the
Hydroxyl-F³RAS process at Lakeview, the Regional Municipality of
Peel intends to proceed with a full-scale hybrid retrofit of the
entire wastewater treatment plant. The full-scale implementation of
F³RAS technology at Lakeview would make it the largest facility
utilizing the hybrid fluidized fixed-film and suspended growth
treatment process in the world.
KMK Consultants Limited is providing
engineering and project management services for the project.
Hydroxyl Systems specializes in the
engineering, design, manufacture, and installation of comprehensive
advanced water and wastewater treatment systems for municipal,
industrial, marine, and package treatment applications.
People post their requests for help and offer their
suggestions to others in our open forum.
Mr. Denby wants help measuring
ammonium sulphate:
I am interested in finding a method
(indicator kit or titration) for the determination of ammonium
sulphate strength.
The present water treatment solution is 50% sodium hydroxide and
aprox 41% ammonium sulphate. Looking for a method of determining the
ammonium sulphate level.
(Click
here to post a reply)
My plant (resin
production) has flow = 120,000 GPD - plant wastewater is fed to
settling pond (anoxic) 1 mill. gal, from the settling pond to an
Aeration basin #1- at aprox. 90gpm.
In this basin we have 7 aerators, after aeration basin #1 the flow
falls to Aeration basin #2 , with 3 aerators--each of these aeration
basins are 450,000 gals each.
I use the first aeration basin for nitrification and most of my COD
removal. I have been having a hard time getting the D.O. level to
get above 1.5, It's winter so I must feed steam to aeration basin to
keep it above 20 degrees C.
The second aeration basin I use for denitrification, the D.O. is
around 0.30-0.50 most of the time. Right before it leaves aeration
basin #2 it passes the one aerator I keep running before gravity
feeding to my clarifier- and from there to my DAF.
My problem is: bad ammonia reduction efficiency-- solids have been
the same for 4 days and I have not done any wasting---my COD going
to aeration basin has not changed much- as far as I know the same
waste stream is entering the settling pond.
Am I using the basins the right way? I never had these
problems in the past--- I'm not losing solids over clarifier- also.
can feeding raw steam to my aeration basin hurt the bugs or D.O. or
nitrification in general- I recently changed it so the water is
heated in the pipe from anaoxic zone just before entering the
aeration basin- but sometimes I have to open raw steam to air basins
when temp. drops too much....anybody want to attempt to tackle all
this??
(Click
here to post a reply)
Share your expertise with others in the Help
Forum.
Photos
Wanted
Call For Photographs!
This
week's photo is of two
Muffin Monster sewage grinders and is located at the McMurdo
Station, the main U.S. outpost in Antarctica. The enclosed plant can
treat up to 121,000 GPD sewage for 1,000 people at the station
during the busy summer months.
We would love to have your photo of a
water treatment process, new plant or equipment "action
shot" for our home page. If you have a favorite
photograph of water treatment at its best, please e-mail us a jpeg
or gif of the photo with a description of what is in the photo for
our home page.
I have a client in Columbia, MO who
is looking for an Applications Engineer. The ideal candidate
will come from the Midwest, needs to possess wastewater treatment
experience and be proficient in Spanish. Relocation assistance
is available.
Shane Winter, Recruiter
JobFinders Employment Services
1729 West Broadway, #4
Broadway Shopping Center
Columbia, MO 65203
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Water and Wastewater.com. You can post job opening for managers, engineers, sales,
reps or other talented people you need. ...Or one can post their resume for companies who are looking to add talented
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subscribers? Please submit articles via e-mail, only to:
news@waterandwastewater.com
Unlike
other bar screen designs, the Auto-Rake has no exposed drive
components that can corrode, wear or become misaligned. Instead, the
unit is housed in a fully sealed boom assembly, making it ideally
suited for severe weather and operating conditions.
"It
is a monumental work, very clear and well written. We needed
this book."
"Presents
today's best techniques for residuals management, practical
guidance on instrumentation and control and a troubleshooting
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