Intel Water Reclaim Project Final Report 5 25 05

Intel Water Reclaim Project Final Report 5/25/05

Intel Project Team • • Matt Lundervold Bryan Gregory Charles Brown Dave Montero • Academic Advisor: Professor Zareh • Industry Advisor: Steve Chen

Project Scope • Design a full scale water reclaim system capable of recycling RO reject water. – Phase I: Design, build & test Pilot system – Phase II: Design Full Scale Reclaim System

Summary of Design Process • Translate Customer needs into Engineering Targets • Design & build Pilot • Collect water quality data from pilot • Design reclaim system based on pilot data

Phase 1: Pilot Design & Testing • Key Design Decisions – – – Reverse Osmosis Mobility Flexible Hoses Bypasses Removable Components • Startup, Testing, & Data – Data Collected for various combinations of pretreatment – Test results determined component selection and antiscalant treatment

Pilot drawing

Phase II: Full Scale Water Reclaim Design • The team utilized Pilot data, RO modeling software, and Intel design specifications to complete the final design.

Key Design Decisions • • • RO Treatment Membrane Selection Water Softener RO Configuration Booster Pump

RO Treatment • • • Proven technology Widely used by Intel Expandable for increasing water demands Relatively inexpensive compared to other methods Easily integrated into existing system

Membrane Selection • Low fouling – resistant to scaling and organic fouling – Durable – Low maintenance – High quality output – Relatively low energy consumption

Water Softener • Proven technology • Expandable • Prolongs life of RO membranes and reduces maintenance • Automated regeneration • Optimized foot print

Booster Pump Selection • Grundfos BM 17 -4 N torpedo pump – – – Highly reliable pump design Integrates completely into RO design Energy efficient Accepts VFD Submerged pump and motor, completely sealed unit

RO Configuration • 3 x 2 single pass dual staged stacked design – Meets space requirements – Maximizes product quality – Ease of maintenance – Expandable for future flow requirements – Ease of assembly

REVERSE OSMOSIS SKID

RO PIPING MODEL

RO FUTURE EXPANSION OPTION

Design vs. Targets 100% of Design Targets met Highlights Include: • Exceeded all water quality specifications • System designed to meet 150% of current demand • Maintainable by 1 technician • Capital cost under projected budget • Future expansion possible to 180 gpm • Annual water cost savings of $110 k • One time connection fee cost avoidance of $342 k

Project Summary • Future expansion opportunities – Blending bypass is a low cost solution to increase capacity – Structure allows for another RO • Lesson’s Learned: – Navigating large corporation – Third party vendors • Successes – Met all design criteria – Pilot validated design – Intel will use the pilot as a development tool