ENVIRONMENTAL WATER SYSTEMS & CONTROLS


REVERSE OSMOSIS SYSTEM

1.0 OVERVIEW............................................................................................................ 2
2.0 RO FEED PRETREATMENT ................................................................................. 3
2.1 Well water feed - Prefilter ...................................................................................... 3
2.2 Solenoid shutoff valve ............................................................................................ 3
2.3 Low pressure Switch .............................................................................................. 3
3.0 THE REVERSE OSMOSIS SYSTEM..................................................................... 4
3.1 Skids - .................................................................................................................... 4
3.2 Components........................................................................................................... 4
3.3 RO membranes ...................................................................................................... 4
3.4 RO Feed Pump ...................................................................................................... 4
3.5 Electrical control panel ........................................................................................... 5
3.6 RO Water holding tank and house feed pump ....................................................... 5
4.0 INSTALLATION AND WARRANTY ...................................................................... 7
4.1 Optional Installation (non-union)............................................................................. 7
4.2 Warranty................................................................................................................. 7
5.0 SYSTEMS MAINTENANCE................................................................................... 8
6.0 INVESTMENT SUMMARY..................................................................................... 9
6.1 System pricing........................................................................................................ 9
6.2 Clarifications........................................................................................................... 9
7.0 DESIGN SUMMARY ............................................................................................ 10
8.0 SALES AGREEMENT ............................... ERROR! BOOKMARK NOT DEFINED.
9.0 DRAWINGS ........................................................................................................... 0



REMCO ENGINEERING 4835 COLT ST. VENTURA, CA 93003 (805)658-0600 Email:solutions@remco.com www.remco.com
1 REVERSE OSMOSIS SYSTEM
1.0 OVERVIEW
Reverse Osmosis systems use a semi-permeable membrane to separate dissolved
solids (TDS) from water. At normal pressure, water will not pass through the
membrane because the very small pore size in the membrane causes the surface
tension at the water/membrane interface to be too high for water to flow.

Increasing
the pressure of the water causes the water to pass through the pores. The higher
the pressure, the greater the rate of water flow. The higher the dissolved solids level
(TDS), the more pressure it takes to get a particular flow rate with a given membrane.
For this reason, membranes are rated at a constant TDS and pressure for a certain
flow rate.
Some TDS, which is called the leakage, will seep through the membrane and is
usually 0.5% or 1%, depending on membrane type. We optimize all process
parameters to provide the best system for a particular installation. Each installation
may require pretreatment such as softening, pH adjustment, filtration, or carbon
treatment to keep the membranes in peak condition. Remember that RO passes the
water as the permeate and concentrates the TDS in the reject stream. In most
systems, the ratio is 50 : 50, The HighEfficiency system proposed has a ratio of 70 :
30 . A second stage can be added. If excess capacity is purchased, some of the
reject can be plumbed back to the input for a second pass.
This system design and performance quoted is based upon the Well water data from
the summary table. A summary of the water analysis that was used for the system
design is included at the end of this quotation. Water quality variations from the
design basis can alter the actual performance of the system as quoted. Make sure
the actual water feed will match this analysis.

REMCO ENGINEERING 4835 COLT ST. VENTURA, CA 93003 (805)658-0600 Email:solutions@remco.com www.remco.com
2 REVERSE OSMOSIS SYSTEM
2.0 FEED PRETREATMENT
2.1 Well water feed - Prefilter
2.1.1 10" filter housing.
2.1.2 5 micron prefilter

2.2 Solenoid shutoff valve
2.2.1 3/4" brass valve.
2.2.2 Automatic
operation
2.2.3 110 V. solenoid
2.3 Low pressure Switch
2.3.1 Protects
pump
when filter clogs
2.3.2 Interfaced to PLC
2.3.3 110 V. operation


REMCO ENGINEERING 4835 COLT ST. VENTURA, CA 93003 (805)658-0600 Email:solutions@remco.com www.remco.com
3 REVERSE OSMOSIS SYSTEM
3.0 THE REVERSE OSMOSIS SYSTEM
3.1 Skids -
Remco Engineering skids are all fiberglass with an epoxy coating for superior corrosion
resistance and provide a long service life. Resistant to both caustics and acids, the skid
will not rust out over their long life expectancy (approx 3" long x 3' wide x 5' high. Other
configurations are available.


3.1.1 Fabricated and bonded with
structural epoxy
3.1.2 Coated with industrial acid and
caustic resistant gray epoxy
3.1.3 Vertical controller - instrument
mounting panel
3.2 Components

3.2.1 RO pressure vessels,
fiberglass or Stainless steel
construction
3.2.2 Oil filled pressure gauges for feed and reject stream pressure
3.2.3 Air operated valve on low pressure side, solenoid operated on high pressure
3.2.4 High efficiency, multistage, stainless steel centrifugal pump.
3.2.5 All high pressure components of stainless steel, fiberglass or CPVC
3.2.6 Nema 4x control panel
3.2.7 Flow meters for permeate, reject and recycle streams.
3.3 RO membranes
Thin film type, spiral wound for high flow (1 - each 4" x 40"). System is sized based
on the water analysis shown at the end of the quotation. Total system recovery is
80% with a permeate(clean RO water) flow of 1+ gallons per minute.
3.4 RO Feed Pump
1 hp pump with motor.

REMCO ENGINEERING 4835 COLT ST. VENTURA, CA 93003 (805)658-0600 Email:solutions@remco.com www.remco.com
4 REVERSE OSMOSIS SYSTEM
3.5 Electrical control panel
Nonmetallic fittings, pushbuttons and lights insure long life and good appearance.
Nema 4x fiberglass enclosure seals out fumes. Wired for 120V/60hz


3.5.1 Nema 4x enclosure, all corrosion
resistant fiberglass
3.5.2 All switches Nema 4x
3.5.3 Air input fittings
3.5.4 Soft start motor controls
3.5.5 Microprocessor to monitor system and
control interfacing between components.
3.5.6 Indicating "on" switch with latching
relay
3.5.7 Internal circuit breaker, 120V
3.5.8 Emergency off mushroom head push-button
3.5.9 Nema 4x enclosure with meter
3.5.10 On/off switch (Nema 4x) in main electrical enclosure
3.5.11 Controller output interlocks PC to set alarm

3.6 RO Water holding tank and house feed pump
3.6.1 Polyethylene, 300 gallon capacity (35" x 81)
3.6.2 Level control (high, and low)
3.6.3 Interfaced to main controller
3.6.4 3/4 hp 316 stainless steel turbine type centrifugal pump
3.6.5 Supplies 15 gpm @ 30 psi
3.6.6 Motor contacts mounted in main control panel
3.6.7 Romate 30 gallon pressure tank
REMCO ENGINEERING 4835 COLT ST. VENTURA, CA 93003 (805)658-0600 Email:solutions@remco.com www.remco.com
5 REVERSE OSMOSIS SYSTEM
3.6.8 Pressure switch to control pump on/off
3.6.9 Contactor interfaced through PLC




REMCO ENGINEERING 4835 COLT ST. VENTURA, CA 93003 (805)658-0600 Email:solutions@remco.com www.remco.com
6 REVERSE OSMOSIS SYSTEM
4.0 INSTALLATION AND WARRANTY
Remco Engineering provides a skid mounted system as described in this proposal,
including skid mounted system and any associated feed tanks where noted,
hardware, control hardware, software, mechanical, and electrical assembly and
installation. If desired Remco Engineering can provide all mechanical and electrical
installation labor and material.
4.1 Optional
Installation
(non-union)
4.1.1 Full installation supervision, all components placed on fiberglass & epoxy skid. Other
subcontractor to place skid in position and bring utilities to within 6 ft. of system. We will
instruct local labor in the correct procedures to hookup and finish installation of the system
(tank interconnects, level control wiring, and tank filling)
4.1.2 Full startup and installation with Remco supervision
4.1.3 Training

4.1.4 Manuals, schematics, troubleshooting guide
4.1.5 All mechanical installation
4.1.6 All electrical installation (excluding power supply)
4.1.7 All necessary equipment rentals (by others)
4.1.8 General
Layout

4.2 Warranty

4.2.1 Limited one year parts warranty
4.2.2 Limited 90 day labor warranty
REMCO ENGINEERING 4835 COLT ST. VENTURA, CA 93003 (805)658-0600 Email:solutions@remco.com www.remco.com
7 REVERSE OSMOSIS S