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  • RussellP32 commented on Mastering Me's instructable Easy Life-Saving Water Filter10 months ago
    Easy Life-Saving Water Filter

    Were you ever in the Military? As well as other resources, we find the Clorox in correct quantities will purify the water quite well. We used it in Viet Nam to purify the water there. Drinking Bleach as you call it, is ridiculous, as the Chlorine evaporates after a while when it finishes the purification. If you do as you say, you may find yourself thirsting to death in hard times.

    To:From: kleetus92Date: Sep 9, 2018. 8:35 PMSubject: https://www.instructables.com/id/Easy-Life-Saving...Sand removes heavy metals? Wow... that's some extra special ignorance there. reply: https://www.instructables.com/member/RussellP32/c...What you don't know can and will hurt you.//Removal of four common heavy metals [copper (Cu), chromium (Cr), lead (Pb) and cadmium (Cd)] were monitored. The filters were fed synthetic water made from tap water mixed with settled sewage, and each filter was dosed with one of the heavy metal salts. The concentrations of Cu, Cr, Pb and Cd in the influent were selected as 10 mg/l, 100 μg/l, 60 μg/l, and 100 μg/l respectively considering their relative toxicity and WHO guidelines in drinking water. Settled sewage was added to vary the total organic carb...

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    To:From: kleetus92Date: Sep 9, 2018. 8:35 PMSubject: https://www.instructables.com/id/Easy-Life-Saving...Sand removes heavy metals? Wow... that's some extra special ignorance there. reply: https://www.instructables.com/member/RussellP32/c...What you don't know can and will hurt you.//Removal of four common heavy metals [copper (Cu), chromium (Cr), lead (Pb) and cadmium (Cd)] were monitored. The filters were fed synthetic water made from tap water mixed with settled sewage, and each filter was dosed with one of the heavy metal salts. The concentrations of Cu, Cr, Pb and Cd in the influent were selected as 10 mg/l, 100 μg/l, 60 μg/l, and 100 μg/l respectively considering their relative toxicity and WHO guidelines in drinking water. Settled sewage was added to vary the total organic carbon (TOC) of the feed water. The reduction of heavy metal concentrations were monitored at various TOCs, filtration rates and filter bed depths. The results showed that SSFs succeeded in removing heavy metals from water. The removals of Cu, Cr, Pb and Cd at the conventional flow rate and filter depth are 99.6,97.2,100 and 96.6 % respectively. The results also showed that an increase in TOC in the feed water improved metal removal while increases of flow rates caused a decrease of the removal of metals. The removal of heavy metals also decreased with a reduction in sand bed depth. Removal of heavy metals by slow sand filtration. Available from: https://www.researchgate.net/publication/47745904_Removal_of_heavy_metals_by_slow_sand_filtration [accessed Sep 10 2018].////The removal of four heavy metals i.e. Pb, Cr, Cu, and Zn from their aqueous solutions, using ordinary sand as an adsorbent, was studied at 20 degrees C. The amount of metal adsorbed to form monolayer on sand (a(m)), obtained from Langmuir isotherm, exhibited the preference of metals for sand in the order Pb > Cr > Cu > Zn. The heavy metal-sand adsorption phenomena can be illustrated on the basis of the interaction between surface functional group of silicates (sand) and the metal ions. It is deduced that sand can be used as a low cost adsorbent for the removal of heavy metal from wastewater (containing low conc. of metals), especially in the developing countries.//US National Library of MedicineNational Institutes of Health

    Did you read the supporting post I put on that comment? You evidently do not know what you are talking about. They have been using the Slow Sand method to remove heavy metals for many years now.

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  • RussellP32 commented on Mastering Me's instructable Easy Life-Saving Water Filter10 months ago
    Easy Life-Saving Water Filter

    If one chooses you could go a little further by Using the cone filter at the bottom, place charcoal in it, then add another flat bottom filter for each of the fine sand and coarse sand separating everything with the filters for being able to clean the elements after use. This way one could have them for future usage. Just change the filter papers.As for the Bleach, you are supposed to be able to use one capful for purification of 50 Gallons. It sounds as if you are using quite a bit more than that in the 1/2 teaspoon per gallon.

    Sorry, you had 1/4 teaspoon per gallon. Still seems like an overage. In Viet Nam we used one capful per 50 gallons.

    The sand itself removes the heavy metals. This is a common practice around for many years, as with running water in a stream actually helps purify it. This type in larger setups with purifying the water is done all over the world. The water purification plants do not (or should not,) use any type of chemical to filter water. The Charcoal is a good addition.

    This is from a Washington Health outfit:Treating water with household bleach containing 5.25-8.25 percent chlorineVolume of Water to be TreatedBleach Solution to Add1 quart/1 liter5 drops1/2 gallon/2 quarts/2 liters10 drops1 gallon1/4 teaspoon5 gallons1 teaspoon10 gallons2 teaspoons

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  • RussellP32 commented on jessyratfink's instructable How to Repot Container Plants1 year ago
    How to Repot Container Plants

    I have some Coleus plants, which I rescued from getting tossed. I cut some shafts off, placed them in bottles of water and they thrived. They grew nice white roots. I then transferred three of them to "Miracle Grow Garden Soil" with a little fertilizer added in, and the next day they were drooped over. I figured it was just the shock from transplanting them. However, a day later they had all died totally. I had enough water on them, and light. So, why would that happen?Coleus are sopposed to be easy to grow.

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  • RussellP32 completed the lesson Solar Panels in the class Solar Class1 year ago
  • Grow Onions From Discarded Onion Bottoms

    I started a Celery plant by floating the cut off in water. It grew fine for about 3 to 4 inches, but did not have roots showing. I placed it in Dirt in a pot, and it simply died then.

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