Carbon Water Filter
Development of a microfilter separation system coupled with a high dose of powdered activated carbon for advanced water treatment [An article from: Desalination] [H] [T] [M]
Array (Digital) Elsevier
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I have a new well installed in limestone. There is a strong sulpher odor and the water turns black after it sits for awhile in tank. I am using the water ONLY for lawn watering and to refill my koi pond - so no chlorine treatments. I saw greensand filters and carbon treatment, but gees it is a lawn and a pond and those treatments are very expensive!. The holding tank is pressurized. Would any type of aeration work? I don't care so much about the lawn but the sulpher probably isn't good for the koi.
What about making ur own carbon filter to bo between the water source and the holding tank?
Here's how...Walmart sells a big bag of activated charcoal for really cheap. What you could do is make an enclosure for this using 4 inch Schedule 40 PVC plumbing pipe with 2 end caps.
PVC glue will hold the end caps, and you'll need to drill thru the end caps and make water tite fittings and correct connections.
make the 4 inch pipe about 12 inches long and fill it up full with the activated carbon,
USe Duct tape to hold the carbon on one of the ends while u keep the pipe standing up, then fill it completely*** on both ends of the end caps...Use Epoxy Glue to secure in a 4 pieces of cut round fine mesh Fiberglas Screen material from Home Depot or LOWES on the inside then
Before closing the ends do the top end first. Once it is glued n secure
Turn the pipe filter upside down, careful not to damage ur pipe connection then remove the duct tape that was holding the carbon and glue on the last end with the PVC glue.
To use PVC glue, it has to be fast...so here's what you do in a well ventilated area, with newspaper or large tarp covering a floor, and try not to breathe the glue fumes...open the PVC glue and brush lots of the glue on the the outside of the pipe where the edge is, Dont worry about using too much, you then have to brush the inside of the end caps, hopefully u have at least 3/4 inch space for glue all around the inside of the end cap.
Then press the 2 glued pieces together as far as u can. It will setup in seconds and should not be used for at least 2 hours.
When u epoxied that screen material inside the end caps that is for keeping the carbon from flowing out into ur tank. If you could add in a round piece of Tshirt cotton on the closest side of the carbon, this will help keep the black dust of the carbon from fouling ur tank.
...... mark a date on the outside of the pipe when u made it, then 1 year later you'll have to replace the whole thing.
wow nice project. any questions?
I think the biggest challenge will be making the connections on both end caps. You drill holes for the connectors that match up to ur pipes.
how do u make water tite seals? U'll have to use Permatex Yellow Seal, which u can find in a small tube at Autozone or other car parts store.
Use Teflon PASTE on the connection threads to prevent leaks.
this paste is avail in a squeezable tube from Home depot or Lowes, and squeeze the tube a lot gently to be sure the paste is well mixed inside.
Nanostructured Carbon Water Filter. It#39;s 350 times higher adsorption effect than GAC \ Granular Activated Carbon.
I have a juwel 260 fish tank with all the fillters + 2 air pumps with air stones.
I am 3days into a 5 day treatment of [waterlife fin rot +ulcers] before i started i checked my water peramiters with a tetra 5in 1 water test kit which was ok.I have taken out the carbon filter before i started the treatment but now 3days into it i used the test kit again and have found that my nitrate level has gone up to 250 from 50 and my ph level has gone up from 7.6 to 8.4.
usualy i would do a 20% Water change but if i do it would be a waste of time in giving the treatment.
i am sure that having the carbon filter out has afected the water quality.
I was also told not to give a water change for 4days after the treatment had finished.
I have been a keeper of koi and tropical fish for many years but have never had this problem before.
What should i do?
nitrates at 250 are at a lethal level, so i myself would do a water change. its not worth treating the fish if they all going to drop dead from poor water quality anyway. id do a 20% treatment today. leave it a few days then re-test. once the retest came back safe, then i would carry on with the medication. but i guess thats just me. im not sure what the "proper" method of approach would be here
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Is the way it gets removed is through partial water changes and re-installing the carbon filter?
Also how long before I can do partial water changes and put a carbon filter back in.It does NOT say on the outside of the medication.
When you use the treatment for ick it is reccomended to leave out the carbon for 24hrs. The carbon will get the tank clean again. If you have a real bad case of ick then you treat 3 days in a row and leave the carbon out for that long. Do a 25% water change a week later
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Chemists and chemical engineers ofter need to determine amounts of reactants and products that will react efficiently and cost effectively. Use molar volume to determine the amount of baking soda required to react with vinegar to yield just enough carbon dioxide to fill a one-quart, self-sealing plastic bag.
Procedure:
1. Write the balanced equation for the reaction of baking soda and vinegar that produces sodium acetate, water, and carbon dioxide.
-I got: NaHCO3 + CH3COOH ------> NaCH3COO + H2O + CO2
2. Find the volume of a 1-quart, self-sealing plastic bag by filling it with water and the pouring the water into a graduated cylinder or measuring cup.
- I guess i just have to put some water in a plastic bag and then put it in a measuring cup and measure it, let's say i got 40mL.
3. Calculate the mass of sodium hydrogen carbonate that will fill the bag with CO2 gas when the compound reacts with excess acetic acid.
- this is where im stuck, i dont understand what to do.
4. Put on an apron and goggle
5. Weigh the calculated amount of sodium hydrogen carbonate and place it in a bottom corner of the bag. Use a plastic- coated twist tie to seal off this corner.
6. Pour about 60 mL of 1M acetic acid into the other bottom corner of the bag. Be careful not to allow the reaction to mix. Squeeze the air from the bag and seal the zipper top.
7. Place the bag in a large trash can or behind an explosion shield
8. Release the twist tie, quickly mix the reactants, and allow the reaction to proceed to completion.
Analysis:
1. Show and explain the calculations that you used to determine the required mass of sodium hydrogen carbonate.
2. What mass of sodium hydrogen carbonate would be required to react with excess acetic acid to produce 20 000 L of carbon dioxide gas at STP for a water- treatment plant?
3. What would have happened in step 8 if the amount of acetic acid added were insufficient to react with all the baking soda?
I want to do this, but i dont understand, and i need someone to translate to me what to do.
Im not asking you to do this for me, but just to tell me what i need to do because i do not understand anything past procedure #2. Im taking chemistry through an online course and i dont have an instructor or anything to show me or help me with this stuff.
for this problem, i think all you have to do is to calculate NaHCO3 needed to produce a required amount of CO2 gas after reaction. ( in the first case, the amount of gas should be filled in a 1-quart, self-sealing plastic)
assume that carbon dioxide gas is at STP, so we have 1 mol CO2 = 22.4 L of CO2
your measure of the volume of a 1-quart, self-sealing plastic bag is 40ml = 0.04L (fully fill the bag w/ water and measure the amount of water filled)
---> moles of carbon dioxide produced = 0.04 L /(22.4 L/mol) = 0.00179 mol CO2
From the reaction we have moles of NaHCO3 = moles of CO2 = 0.00179 mol
mass = moles*molar mass of NaHCO3 = 0.00179* 84 = 0.15 g
now we're done w/ part 3. and you're all set for the next parts. Just weight about 0.15g of NaHCO3 and carry out by the steps
Analysis part:
1/ same as above
2/ you will do the same calculation except changing the volume of CO2 from 0.04L to 20 000L
3/ if the amount of acetic acid is not enough to react w/ all the baking soda, then the bag will not be fully filled by CO2 gas produced. In this case, the CO2 gas produced will be calculated based on the amount of acetic acid reacted since acetic acid is the limiting agent.
Hope this help. :)
Hello! Ive had my new 10 gallon aquarium running for about 3 months. The day after i opened it, it turned a whitish cloudy color from the new gravel. About a week after that, when i added the fish, the water turned white cloudy and then yellow. We used regular tap water from a well, and treated it with the fast start water treatment for new aquariums. When it got worse i did a 50% water change once a week, and when it kept coming back i did a full water change. This kept it clear about 3 days, then it went cloudy again! (Grr!) I have 9 fish. 2 serpae tetras, 2 redeyes, 3 regular mollies, a kissing gourami, and a pleco. I feed them a small pinch of tropical flakes twice daily. My gravel layer is about 1.5 inches deep. I keep the tank at about 74 degrees. I have not checked any of the nitrate, amonia, exc. levels yet because the fish seem to be doing fine. I have a aquaclear 150 filter with the bio foam and activated carbon inserts. I rinse the inserts once a week and change them once a month. I'm not sure if the beneficial bacteria has cycled yet or if thats even the problem. Please help me clear up my water!
You need to put your tank through a proper cycle.
http://www.firsttankguide.net/cycle.php< br />
While your fish may seem to be doing well now, this is unlikely to last, as the ammonia buildup in an uncycled aquarium kills very quickly.
Also, your tank is severely over-stocked with fish that grow way too large for a 10-gallon.
I'd suggest returning all of your fish and starting over.
Please research your fish before you bring them home so that you will know that Tetras need to be kept in groups of 6 or more, Plecos have no business being in so small a tank, (if it's a Common Pleco, you'll need about 75-gallons, most others need at least 30-gallons,) that Mollies are naturally brackish water fish, and are stressed when kept in freshwater, and that Kissing Gouramis grow to be 10" and need around 30-gallons.
Here are some good sites for fish profiles/compatibility/requirements:
http://www.aquariumlife.net/fishsearch.a sp
and
http://www.peteducation.com:80/category. cfm?c=16+1911
This is a good site for 10-gallon compatible fish, along with some good stocking ideas:
http://theaquariumwiki.com/Stocking_a_10 _Gallon_Tank
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Startup Manna Energy Seeks to Use Carbon Offsets to Provide ...
Manna Energy , a Houston, Texas-based water technology startup, is seeking to put carbon offsets to an innovative and life-saving use: providing water – sustainably – for Rwandan communities. In addition to addressing the country’s interrelated problems of water shortage, climate change, and non-sustainable development, Manna Energy is making the case for sustainable growth in developing countries.
Manna’s Rwanda Natural Energy Project is still in-progress. When complete, it will provide clean, drinkable water for more than 250,000 teachers, students, and staff at more than 400 secondary schools throughout Rwanda, GreenBiz.com reports . It will do so sustainably, replacing traditional water-purification techniques at those schools (typically, boiling water by burning wood, thus creating carbon emissions) with green water treatment plants, which will purify water using gravity filtration and solar power. In addition, the Project will also employ a workforce in Rwanda and utilize local materials, thereby supporting local economic growth and stability.
...DMN INVESTIGATES Blog | The Dallas Morning News
While researching the practices of the Garland Animal Shelter for a story , I was interested to find that there are no state-required inspections of shelter-run carbon monoxide chambers. That means Texas also doesn't track which animal shelters use carbon monoxide for euthanasia.
Garland is self-insured, so no outside insurance companies are inspecting the city's chamber either.
Officials over the shelter say the carbon monoxide that is in use is actually less dangerous than chlorine chemicals which are used at the water treatment plant.
The fact that this shelter does not allow any outside inspections of its facility and methods of euthanasia should be a big red flag!!! It is like the fox guarding the henhouse! It is a well documented fact that gassing animals is one of the most inhumane, cruel methods of euthanasia, which is WHY more and more animal shelters have switched to a much more humane method. It really is appalling that outdated, barbaric gassing of animals continues anywhere. It was clear from the comments in the paper the other day in response to this issue that many residents of Garland, many of whom may be just learning about this, are as sick about this as I am. Improvements need to made NOW and if the current staff cannot manage this, then hire new people who can handle it! I cannot believe that allowing these animals to die in a more humane manner is that much more expensive. Maybe we need to be thinking about a way to gas the irresponsible, thoughtless owners who should be spaying/neutering their pets, not to mention backyard breeders, who contribute in a big way to all the poor animals who wind up in these places in the fist place.
...News
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