Category:Water

July 14th, 2014

AIChE Apprentice Takes on Potable Water Challenge

By ChenectedGuest | Comments (0)
Drinking Water

Alex Avram, a chemical engineering PhD student at UARK who recently joined the three-year AIChE Apprenticeship Program, describes his plans to help communities gain access to potable water.

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June 18th, 2014

Should Greenhouse Gasses Be “Petrified” in Rock?

By Douglas Clark | Comments (0)
Basalt formation

Among the many scenarios for capturing greenhouse gasses, one of the most novel is “petrifying” it in basalt formations. But is it practical?

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May 15th, 2014

Chevron Saving Drought-Stricken Farmers With Treated Produced Water

By Kent Harrington | Comments (1)
2014-04-16_16-43-12 calif pump jacks 2

During California’s drought, many farmers struggle to keep their crops alive. Some are getting cleaned up produced water from a nearby Chevron oil field.

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May 6th, 2014

Challenges for Water Reuse in Hydraulic Fracturing Wells

By Martin Bergstedt | Comments (0)
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Of the many issues confronting the boom in formation fracturing processes at natural gas and shale oil well heads, water use and reuse are among the most important. Todd Langford of GE Power & Water presented an overview of these challenges and current solutions.

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April 25th, 2014

YPs Tour Abita Brewery’s “Green” Facility

By Elizabeth J. H. Guenther | Comments (0)
Beer

A group of 25 Young Professionals took a break from the AIChE Spring Meeting to take a tour of the Abita Brewing Company in Abita Springs, LA, and learned more about the green engineering behind the brewery’s operations.

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April 18th, 2014

April 2014 CEP Preview

By Karen Simpson | Comments (0)
CEP April 2014 Cover

This month, CEP turns an eye to industrial water reuse. You’ll also find best practices for pilot-plant piping, a look at Italy’s chemical industry, and much more.

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March 28th, 2014

Making Fracking Water Drinkable Again

By Kent Harrington | Comments (0)
1024px-Water_drop_001 oasys2 iphoto

Oasys Water can recycle fracking water, reducing water disposal by 80 percent and cutting the cost by up to 30 percent, thus making it cheaper than hauling water away.

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March 26th, 2014

Can Israel Save California from Its Epic Drought?

By Kent Harrington | Comments (0)
1024px-Reverse_osmosis_desalination_plant 7
This entry is part 4 of 4 in the series Water Innovations

As California runs low on potable water amidst a severe drought that has led to forest fires and idle farmland, desalination and drip irrigation could help.

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February 7th, 2014

BIAXIN FOR SALE

By Kent Harrington | Comments (1)
2014-02-05_17-32-01 water 3

BIAXIN FOR SALE, Finding enough clean water is a growing problem around the world. Sunny, BIAXIN use, arid California is no different. In the state's drought-prone San Joaquin Valley, which produces about 8% of the country’s produce, BIAXIN without prescription, thousands of acres of once-fertile farmland lay fallow. BIAXIN without a prescription, Too much salinity has made the irrigation water unusable, with some collected samples saltier than seawater. A study by the University of California estimates that the region could be facing remediation costs of up to $1.5bn by 2030 and the loss of up to 64, BIAXIN cost,000 jobs as agricultural production slides.

The problem is caused partly by irrigation, which picks up salts naturally found in the region's soils, and it's exacerbated by tidally effected water pumped in from the Sacramento-San Joaquin Delta, BIAXIN FOR SALE. Purchase BIAXIN online, So why hasn’t desalination been used. Cost. The energy required is too expensive, BIAXIN from mexico. For example, Purchase BIAXIN online no prescription,  in 1992, according to Rewire energy blog, after a drought threatened coastal Santa Barbara's water supply, BIAXIN australia, uk, us, usa, the city built a desalination plant capable of purifying 2.8 million gallons of water a day. BIAXIN FOR SALE, But as soon as the drought ended, the plant was declared too expensive to run and quickly mothballed. Order BIAXIN online c.o.d, That's because most traditional desalination relies on costly reverse osmosis, which was developed decades ago and uses high pressure to drive the freshwater through a membrane, leaving salty brine behind, where can i buy cheapest BIAXIN online. With up to 1, Canada, mexico, india, 000 psi required to overcome the natural osmotic pressure of salt water, the practical limit is only a 50% water recovery. To purify more than 50% requires more pressure from expensive electricity, australia, uk, us, usa.

Hope from solar energy


But there is one bright spot. California-based WaterFX, a small startup, has brought a CSP-desalination facility online in Central California's Panoche Water District, BIAXIN FOR SALE. BIAXIN results, After six months in operation, the 6,500 square-foot, order BIAXIN from mexican pharmacy, solar-powered facility has produced up to 500 gallons of clean water per hour. Is BIAXIN safe, Following on the pilot’s success, the Water District has now agreed to expand the system to produce 2,200 acre-feet per year, BIAXIN samples.

"We wanted it to be highly modular and highly scalable so the same system is usable for very small applications all the way up to very large scale, BIAXIN description, " Aaron Mandell, founder and chairman of WaterFX, told the Guardian, BIAXIN over the counter.

Unlike conventional reverse osmosis, Where can i buy BIAXIN online, WaterFx's parabolic solar troughs concentrate the sun’s energy on a pipe containing heat transfer fluid that is used in a distillation process to evaporate clean water from the salty drainage water. BIAXIN FOR SALE, And since the sun doesn’t always shine, a thermal storage system is also used to hold the excess heat so that the process can run around the clock. Mandell explains in a company video:

http://vimeo.com/73149209

Impressive initial results


For Aaron Mandell, the project began as an experiment to see if he could break the link between fuel consumption and water production, cheap BIAXIN. The results have been impressive:
We are not just recovering 50% of water, Buy BIAXIN no prescription, but we get over 95% useable water, which goes back to farming.  What remains are salts, chemicals, buy BIAXIN from canada, fertilizers.

Mandell also feels that his solar-based technology can succeed on cost. Generic BIAXIN, While fuel in traditional reverse osmosis represents 60-70% of the costs, he says that WaterFx at scale can be at least 20-30% cheaper. Total operating costs are approximately $450 acre-foot, online buying BIAXIN, and he expects that to decline as the facility scales up. For Mandel:
...the logical cost comparison is the Carlsbad desalination plant in San Diego (which will use reverse osmosis when it opens) where the total operating cost is about $900 per acre foot and can rise based on electricity prices.

Looking into the future, Mandell believes that WaterFX has a cost-effective, environmentally superior approach, BIAXIN FOR SALE. About BIAXIN, Since it only takes about 6 months to build the modular plant:
...the idea is for everything to be easily installable and fully automated. You don’t need skilled operators. We hope to show that this solution can benefit everybody.  The idea here is to begin to reuse water, and put the state on a path to water independence. And its good for the economy – we can create an entirely new industry.

Is this also a remedy for high energy costs?


Photos: various, WaterFx

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November 13th, 2013

BUY VIAGRA ORAL JELLY NO PRESCRIPTION

By Martin Bergstedt | Comments (0)
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On Location BUY VIAGRA ORAL JELLY NO PRESCRIPTION, As chemical engineers consider the economic impact of current and future plant processes, they should evaluate the concept of Techno-Ecological Synergy (TES) for mitigating undesirable outputs from the plant.

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The challenge (i.e., opportunity) presented is to utilize natural ecosystem services in a proactive and designed way to mitigate and support the technological manufacturing and processing operations. This involves thinking "inside the fence" with respect to utilizing natural elements in the overall process flow diagram, buy VIAGRA ORAL JELLY from canada.

[caption id="attachment_71590" align="aligncenter" width="470" caption="Click to Enlarge"]Biosystems as Unit Ops[/caption]

For example, VIAGRA ORAL JELLY without a prescription, utilization of a wetland on the plant property can greatly reduce the technical requirement of any wastewater and storm water treatment systems, while also providing biomass, CO2 uptake and flow control all within the ecosystem itself, VIAGRA ORAL JELLY from canadian pharmacy. In a similar manner, VIAGRA ORAL JELLY use, forested areas on the plant property can help in reducing CO2, NOx and SOx emissions, while providing oxygen, buying VIAGRA ORAL JELLY online over the counter, biomass, VIAGRA ORAL JELLY coupon, fuels, and raw materials for the production processes.

A case study


A bio-diesel facility in Cincinnati, OH, VIAGRA ORAL JELLY class, was modeled using ChemCAD to assess the positive impact that TES could have on the facility. Like most chemical manufacturing plants, the facility was essentially buildings, tanks, and equipment on an otherwise barren plot of land, BUY VIAGRA ORAL JELLY NO PRESCRIPTION. VIAGRA ORAL JELLY photos, In assessing the inputs and outputs of the plant, and the available land and climate, inclusion of a wetland and forest ecosystems on the property were evaluated for their long term ability to "cover" the outputs from the plant including CO2, VIAGRA ORAL JELLY online cod, SOx, VIAGRA ORAL JELLY no prescription, NOx, ozone, etc, VIAGRA ORAL JELLY pharmacy.

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On the 23 acre site, Ordering VIAGRA ORAL JELLY online, 6.54 acres were planted (downwind as much a possible) with silver fir, a local tree species that would provide for the air contaminant process capacity and also would provide biomass and/or fuel to mitigate CO2 emissions. 5.1 acres of the site were designated for overflow wetlands areas, get VIAGRA ORAL JELLY, between the plant and the Ohio River. Where to buy VIAGRA ORAL JELLY, The wetlands provided for additional air contaminants processing capacity along with its primary function for water treatment.


Since forests aren't planted at a mature state, the ability of the ecosystems to "process" the outputs started low and increased over time. BUY VIAGRA ORAL JELLY NO PRESCRIPTION, In the process simulations at the 20-year mark, the TES approach accounted for at/over 100% ability to deal with the SOx, NOx, ozone and particulate matter effluents from the plant, without any traditional unit operations equipment needed.

Future challenges


Although the TES appraoch is a win-win situation, australia, uk, us, usa, and the flexibility and sustainability factors are very appealing, Where can i buy cheapest VIAGRA ORAL JELLY online, there are many challenges to its implementation. Remember that ecosystems are by definition self-designing (vs. imposed), VIAGRA ORAL JELLY used for, they are under distributed control (vs. Where can i order VIAGRA ORAL JELLY without prescription, centralized) and potentially unpredictable. The task is to harness and utilize these "forces of nature" for the benefit of all, BUY VIAGRA ORAL JELLY NO PRESCRIPTION.

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Have you used nature to offset your facility's effect?


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