The Carbon Fiber Blog

 

Wastewater Infrastructure Innovations:

Posted on by Marci Broderick
injection well graphic

Southern California’s Groundwater Replenishment System

Orange County Water District’s (OCWD) Groundwater Replenishment System (GWRS) is a leader in recycling water and providing potable, drought-proof water in an economical and environmentally sound way. Located in southern California’s semi-arid region, Orange County is home to about 3,000,000 people with projected growth of more than 300,000 people by 2035. Orange County’s GWRS provides enough drinking water for almost 600,000 people each day.Less than a third of California’s precipitation falls in southern California, yet two-thirds of California’s population lives there. OCWD imports some water, but importing is expensive and energy-intensive.

Other states and Mexico rely on some of the same resources; as populations grow and precipitation decreases, the demand for water is straining these finite and essential natural resources. Much of Orange County’s water comes from a large groundwater basin with an annual yield of nearly 300,000 AF of water. Starting in the 1940’s, the natural recharge of this basin wasn’t sufficient to keep up with water use. The OCWD also needed to address problems with seawater intrusion into drinking water supplies.

This gave birth to the OCWD’s ground water replenishment program in an effort to protect the basin and decrease dependence on imported water. Orange County’s GWRS bridges the supply and demand gap.

To make wastewater drinkable, it goes through a five-step process:
1. Pre-purification. Prior to going to GWRS, the Orange County Sanitation District removes many impurities from more than 200 million gallons of wastewater per day in this step. The treatment includes bar screens, activated sludge, trickling filters, grit chambers, and clarifiers that remove contaminates and disinfect the wastewater. Metals and chemicals
in the wastewater are strictly controlled to ensure water
quality standards.

Step 2. Microfiltration. Microfiltration uses bundles of hollow polypropylene tubes. Under a vacuum, the water is forced through small pores in the tubes that are tiny enough to strain out any solids, protozoa and bacteria, as well as some viruses.

Step 3. Reverse Osmosis. This process forces water through encased, semi-permeable polyamide molecular membrane bundles. Under high pressure, the water passes through the membranes sifting out any dissolved salts, organic chemicals, pharmaceuticals and viruses. The result is water so pure minerals are added to the water to buffer and stabilize it.

Step 4. Ultraviolet light with hydrogen peroxide treatment disinfects and oxygenates the water, destroying any trace contaminants that may still be present by breaking their molecular bonds.
To improve the settling of un-dissolved particles, calcium hydroxide and cationic polymers are mixed with water to settle out any remaining particles.

Step 5. Water Delivery. Orange County’s groundwater basin is subject to seawater intrusion. As water is pumped out of the basin and the water level drops, seawater can seep into the basin.

To create a protective barrier, OCWD pumps about a third of the water produced by GWRS into seawater intrusion wells along the coast. The water acts as a hydraulic barrier to seawater intrusion and protects Orange County’s water supply. The remaining purified water (65 million gallons per day), are piped to lakes in Anaheim where it undergoes natural filtration though sand and gravel, recharging north and south-central Orange County’s groundwater basin with fresh drinking water.

Orange County’s Groundwater Replenishment System has been operational since 2008 and is the world’s largest advanced water purification system, delivering up to 100 million gallons of potable water daily.

 

This week is Infrastructure Week!

Posted on by Marci Broderick

INFRASTRUCTURE-WEEK-01

60+ events nationwide. 150 organizations. 7 days to tell America why – and how – ‪#‎InfrastructureMatters‬.

Read More at:
http://infrastructureweek.org/about/
Can’t attend? Watch the webcast:
https://www.uschamber.com/…/webcast-infrastructure-week-201…
Calendar of Events for Infrastructure Week:
http://infrastructureweek.org/calendar/

HJ3 would like to kick off the week by talking about Green Infrastructure: Green infrastructure is an approach to water management:

Bioswale and wastewater infographic

Industrial Asset Life Cycle Infographic

Posted on by Marci Broderick

Much of our nation’s infrastructure is at the end, or past its serviceable life. HJ3’s carbon fiber technologies have advantages that go beyond cost savings and asset life extension. The environmental savings are huge. This infographics details some of the positive impact carbon fiber solutions provide.

asset-lifecycle2-02

Industrial Asset Life Cycle and Environmental Impact Associate with Replacement

160,000 miles of track, 76,000 rail bridges and 800 tunnels…

Posted on by Marci Broderick

U.S. ranks well behind many other countries in overall infrastructure quality in 2014-2015, coming in at 16th.

By 2020 the transportation infrastructure investment gap will be -$1 trillion. Investing in rail expansion would have many long-term benefits both financial and ecological. It is estimated that traffic congestion caused U.S. drivers to waste around 3 billion gallons of fuel in 2014. When time, fuel, car maintenance and lost productivity are factored in, the price tag is a staggering $160 billion dollars nationwide. Investing in passenger and freight rail expansion makes financial sense. This infographic highlights some of the other costs and benefits investing in rail expansion would provide.

Rail infrastructure

© Copyright 2016 HJ3 Composite Technologies, all rights reserved. Passenger and Freight Rail

 

 

 

Giving Back

Posted on by Marci Broderick
HJ3 Giving Back

Giving back is an integral part of HJ3’s corporate culture. At HJ3 we pledge 1,000 hours of community service each year.

Each year as part of our commitment to give back to our community, we work with the Salvation Army to select families for our annual holiday Adopt a Family event. In years past, we would adopt several families. This year we adopted one family, so that we could make a big difference for a struggling family. We adopted a single mother with 6 children. One of her children is special-needs and another was hit by a car and sustained many serious injuries. Mom took off work to care for her injured child, which had a major impact on the family.

We’ll deliver gifts and food that were purchased and wrapped with the children and mom in mind.

Other Giving in 2015

This year HJ3 donated to Pima Animal Care Center, providing food, supplies and money for the care of pets in need. We also participated in our annual Cystic Fibrosis Walk, and the 2015 Walk For Wishes Tucson, which is part of the Make A Wish Foundation. HJ3’s contribution helped Walk For Wishes Tucson raise thousands of dollars to help grant the whishes of children with a life-threatening medical condition.

We would like to thank our customers and friends for making 2015 a special year. The HJ3 family is committed to enriching our community and spreading hope and joy. Have a happy and peaceful holiday.

Get involved!:
Salvation Army Foundation
Make A Wish Arizona
Pima County Animal Care Center
Love Every Day
Cystic Fibrosis Foundation, Tucson

Bridge Pile and Truss Repair

Posted on by Marci Broderick

For this bridge and pile repair project, HJ3 repaired and strengthened a bridge that had 93 concrete piles and 2 reinforced trusses in need of repair and strengthening. HJ3’s patented products were used to repair and strengthen the piles 10 feet above and 5 feet below the waterline.
Watch the video on YouTube

bridge with many concrete piles needing repair 2
For this project, HJ3 had an above-water and below-water team of certified installers. The degraded concrete was removed and the piles and trusses cleaned.
5 Bridge with many piles over water
The bridge was repaired and strengthened above and below the water, then wrapped with HJ3’s carbon fiber and CFRP. The piles above water had a UV and pH protective coating applied over the carbon fiber.

DESIGN: HJ3 relies on ACI-440.2R-08 ” Guide for the Design & Construction of Externally Bonded FRP Systems for Strengthening Concrete Structures

STRENGTH: HJ3 verified the strength of its underwater system in accordance with ASTM D3039.

HJ3’s team of engineers will design custom structural solutions for you.
Call us today! 877-303-0453 or email us at: info@hj3.com
To find out more about this project, watch the video…

 

The State of Dams in the US

Posted on by Marci Broderick

Written by: Elizabeth Rosenberg

the state of dams in the us
There are 87,359 Dams in the US. Their average age is over 53. Many are in need of repair and are considered to pose a high or significant hazard potential.

Many communities are located downstream of dams.