Lombardo Associates, Inc.

Representative Phosphorus Removal
Project Descriptions

 PhosRIDTM Phosphorus Removal Technology
Description
 Residential Installations- Nantucket, MA Office Building- Central Hudson Gas &Electric, Ulster, NY

PhosRIDTM Passive Phosphorus
Wastewater Removal System
Primary
Treatment /Septic Tank

Wastewater Flow

Soil
Dispersal

TM

PhosRID
SystemPhosRIDTM Module in a Wastewater System

The PhosRIDTM system removes phosphorus
from water through reductive iron dissolution
and mineralization of phosphorus.
Septic System Test Center, MA Project
Project Description
Lombardo Associates, Inc. (LAI) and theUniversityofWaterloo
installedademonstration
PhosRIDTM
phosphorus
removal system at the Massachusetts Septic
System Test Center. Data collection andanalysis was performed by the Barnstable
County Health Department.
Project Application Data
 Location:
Otis Air Force Base, MA Site Application: Massachusetts Septic System Test Center (MASSTC)
 Installation Date:
August 2002
Design Profile Design Wastewater Flow: Wastewater Treatment Process:330 gpd
Septic Tank – PhosRIDTM - Media Filter - Leaching Trench

PhosRidTM Treatment Performance
The PhosRIDTM installed at the Massachusetts Septic System Test Center has reduced phosphorus
in the effluent by an average of 94% over the one year that it has been in operation. In addition, thePhosRIDTM has reduced the Total Nitrogen by 54% and BOD in the effluent by 86%.
Influent to RID
ResultRID Filter

PO4 -3(mg-P/L)

BOD5(mg/L)

Total P(mg/L)

TSS(mg/L)

TN (mg/L)

Total P(mg/L)

4.2

150.0

5.7

23.2

33.3

0.4

94%

86%

54%

0.6

67.9

2.6

7.3

3.9

0.3

7%

15%

9%

MIN

3.1

46.0

3.8

4.4

26.2

0.0

79%

37%

40%

MAX

5.5

277.0

16.0

40.7

37.21.0

100%

99%

63%

Average(mean)Standard
Deviation%P% BOD%NRemoval Removal Removal

Avg = 94%% P ho s Remo val byRID SystemMay -03

Jan-03Mar -03

A verage % Remo ved

Dec -02

May -03

Jan-03

Dec -02

Oct- 02

Mar -03

Total P in Influent

100%
90%
80%70%
60%
50%
40%
30%
20%10%0%
Oct-02

Total P in Effluent% Total Phos Removal byf PhosRID Filter

Sep -02

18.0
16.0
14.0
12.0
10.0
8.0
6.0
4.0
2.00.0
Sep -02

Total P (mg/l)

Total P of Influent to and Effluent of PhosRID

Date

Date% BOD Removal byf PhosRID Filter

A verage % remo ved

30%20%10%Date

May -03Mar -03

Jan-03

Dec -02

Oct-02

Sep -020%% B OD Remo val byRID Filter
A verage % remo ved

May -03

40%Avg = 86%Mar -03% To tal N Remo val by
RID System

Avg = 54%

Dec -0250%

Oct-0260%

100%90%80%70%
60%
50%
40%
30%
20%10%0%
Sep -0270%

Jan-03% Total N Removal by PhosRID Filter

Date

Reference:
Mr. George Heufelder
Barnstable County Department of Health
Post Office Box 427Barnstable, MA 02630(508) 375-6616

Nantucket, MA Projects
Lombardo Associates, Inc. (LAI) designed
PhosRIDTM system components to beintegrated with the property’s septic tank andsoil absorption system. The design flows is 440
gpd for Sites 1 and 2 and 330 gpd for Site 3.
The PhosRIDTM technology has provenextremely effective at removing phosphorus
from septic tank effluent.
In addition,
PhosRIDTM also provides nitrogen reduction,
BOD reduction and reduction in the totalsuspended solids.

The Nantucket, MA sites performance summary is presented below:Lombardo Associates, Inc. (LAI) has been Engineer of Record for over $200 million of wastewater
management projects, including numerous wastewater treatment facilities utilizing a wide varietyof on-site and decentralized systems. LAI provides a wide range of services, including
engineering feasibility studies, traditional engineering services of planning, design andconstruction engineering, and the turnkey services of designing, building, owning/financing, andoperating wastewater and water facilities. Among our areas of nationally recognized expertise are
the planning and implementation of on-site and decentralized wastewater systems and innovative
nitrogen and phosphorus removal technologies.
LAI is a recipient of the prestigious American Consulting Engineer's Council Engineering
Excellence Award for its innovative wastewater project. Pio Lombardo was an Engineering News
Record Construction Man of the Year candidate.
Contact:
Pio Lombardo, P.E.
Lombardo Associates, Inc.
Environmental Engineers/Consultants
188 Church Street
Newton, MA 02458
Tel:
617-964-2924
Fax:
617-332-5477
Email: Pio@LombardoAssociates.com
Web Site: www.LombardoAssociates.com

PhosRIDTM Passive Phosphorus Wastewater Removal System
Project:Client:

Office Building Wastewater
Treatment System

Septic Tank

Central Hudson Gas & Electric

Wastewater Pio Lombardo, P.E.
Engineer:Lombardo Associates, Inc.
Boston, MA & Malibu, CA
617-964-2924
Pio@LombardoAssociates.com
www.LombardoAssociates.com
Lombardo Associates, Inc. (LAI) designed &implemented an innovative PhosRIDTM Passive
Phosphorus Wastewater Removal System for theCentral Hudson Gas & Electric (CHG&E) Wastewater
Treatment System at CHG&E’s Lake Katrine, NY officeand operations center. The PhosRIDTM system has been
operational since September 2008. The treatment
system’s operational parameters are:PhosRIDTM
FilterDesign Criteria: 2,500 gpd
Application: Residential type wastewater, limited
showers, no laundry
Influent:
Septic tank effluent
Influent P: 16.8 mg/l
Effluent P:
1.6 mg/l
The PhosRIDTM system is a passive biologically mediatedgeochemical mineralization system for phosphorus removal,requiring little O&M and consists of a PhosRIDTM Filter andoptional sand filter or use of drainfield. The PhosRIDTM Filter
provides approximately 50% BOD and Total Suspended Solids (TSS) reduction. It is estimated that
PhosRIDTM Media will need to be replenished after 7 – 10 years of use, which can be readily
accomplishedwithan
injectionofmaterials
intothePhosRIDTM
Filter.

Wastewater Flow

Primary
Treatment /Septic Tank

TM

PhosRID
SystemPhosRIDTM Module in a Wastewater System

Soil
Dispersalor Direct
Discharge