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posted by Fnord666 on Thursday September 03 2020, @09:39AM   Printer-friendly
from the do-they-have-a-citrus-smell? dept.

Orange peels used to extract valuable metals from spent batteries:

Just because a lithium-ion battery no longer holds a charge doesn't mean it no longer holds any value. It still contains useful metals, which can now be reclaimed via a more eco-friendly technique – the key ingredient is orange peel waste.

[...] With that limitation in mind, scientists at Singapore's Nanyang Technological University tried using orange peels instead of the usual acids and hydrogen peroxide. More specifically, they utilized oven-dried orange peels that had been ground into a powder, combined with citric acid obtained from citrus fruit.

Doing so, the researchers were able to extract about 90 percent of the lithium, cobalt, nickel and manganese from spent lithium-ion batteries. This level of efficiency is roughly what had been achieved previously. Importantly, though, when using the orange peels, the residue was found to be non-toxic.

[...] The researchers used the reclaimed metals in new lithium-ion batteries, that have a charge capacity similar to that of commercially available models. Further testing is now being conducted, to see if the new batteries last for a comparable number of charge/discharge cycles.

A paper on the research, which is being co-led by Prof. Madhavi Srinivasan, was recently published in the journal Environmental Science & Technology.

Journal Reference:
Zhuoran Wu, Tanto Soh, Jun Jie Chan, Shize Meng, Daniel Meyer, Madhavi Srinivasan, and Chor Yong Tay. Repurposing of Fruit Peel Waste as a Green Reductant for Recycling of Spent Lithium-Ion Batteries . Environmental Science & Technology 2020 54 (15), 9681-9692 DOI: 10.1021/acs.est.0c02873


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  • (Score: -1, Spam) by Anonymous Coward on Thursday September 03 2020, @10:55AM

    by Anonymous Coward on Thursday September 03 2020, @10:55AM (#1045793)

    Marissa_Van_Eck FAKENAME_NIGGER CUNT_Azuma_Hazuki: So "that was NOT me posting" https://soylentnews.org/comments.pl?noupdate=1&sid=37033&page=1&cid=985641#commentwrap [soylentnews.org] which YES, you said when you_LIBELED me publicly BEFORE it with YOU saying "So that's a "yes" to schizophrenia/schizoaffective disorder and a "no" to "am taking meds for said disorder"_LIBELING ME then...?" per YOUR https://soylentnews.org/comments.pl?noupdate=1&sid=37033&page=1&cid=982854#commentwrap [soylentnews.org] you stupid pitiful FAKENAME_fuck online LIAR piece of fucking SHIT NIGGER?

    OR

    Was it when I GOT YOUR REAL_NAME & found you are a_satanist/anti-god HERE https://redeeminggod.com/sermons/luke/luke_7_36-50/#comment-269796 [redeeminggod.com] also which most ALL you "LEFTIST" LOSER weirdos usually are (which YES, in THIS other exchange "Why do you assume that you finding discussion threads on other sites with me in them will scare me?" quoted from https://soylentnews.org/comments.pl?noupdate=1&sid=38720&page=1&cid=1028402#commentwrap [soylentnews.org] you DID admit FINALLY to saying it was you - ESPECIALLY AFTER dozens of doctors RECENTLY seconded me on Hydroxychloroquin + Zinc (& Vitamin D3 imo along w/ other things I noted that are anti-viral + antibacterial like RAW GARLIC too)).

    Do me a favor - DENY ANY OF THOSE, please & I will continue PROVING YOU ARE A NIGGER_SHITBAG LOSER, devil... as I already DID here https://soylentnews.org/comments.pl?noupdate=1&sid=38720&page=1&cid=1028211#commentwrap [soylentnews.org]

    The TRUE BEAUTY of SATANIST_FUCKS like YOU (antigod assholes)? TRUTH & FACT DESTROYS LIBELOUS_DEVILS LIKE YOU - just like I did you & OTHER AHOLES who doubted what I wrote on what is NOW PROVEN TRUE by DOCTORS, admitted in mainstream media etc. (as I showed in those links' exchanges above easily) & especially LATELY by DOZENS of doctors (I have proof from pros - NOT LIBEL like you did to me PUBLICLY & I can still FRY YOU FOR IT FUCKER, live in fear fuck) MINUS any psych pros backing you.

    SAY 1 THING, YOU STINKING LIBELOUS_NIGGER FUCK & I will CONTINUE_LEVELLING YOU PUBLICLY with facts - not libel as you tried on me, stupid "Marissa_von_DUMBO", lol - please, say 1 thing & the BEATING on you, PUBLICLY will continue in this thread where you will have a HELL of a TIME "downmod burying it" via downmod brigades doubtless ONLY yourself via multiple_sockpuppet accounts etc. (downodding to HIDE it? FORGET IT vs. me - everyone sees you @ it now, lol - thanks, just as I SAID "your kind", demonic SWINE/antigod LOSERS, always do).

    WHY SHOULD YOU FEAR LIBELING_ME PROJECTING IT NOW, TRYING TO HIDE IT TOO?

    TOUGH HIDING YOU LIED about_LIBELING ME, especially via INHERENTLY_DAMAGING STATEMENTS libeling me as you did see GOLDWATER_RULE below too fuckface_CUNT you are (wikipedia proof https://soylentnews.org/comments.pl?noupdate=1&sid=37033&page=1&cid=985366#commentwrap [soylentnews.org] & you said "No jury or judge would back it" here https://soylentnews.org/comments.pl?noupdate=1&sid=37033&page=1&cid=985353#commentwrap? [soylentnews.org] Ok - like I said earlier here which you TRIED TO DOWNMOD_HIDE as I knew you HAVE to (everyone sees it anyhow) - TRY ME FUCKER - say 1 thing you COWARDLY STUPID_LITTLE FUCK & we'll SEE what happens to you, fuckface_CUNT you are).

    As I said "DO YOU WANT TO BE_SUED" for breaking the GOLDWATER_RULE? See here again https://soylentnews.org/comments.pl?noupdate=1&sid=37033&page=1&cid=985329#commentwrap [soylentnews.org] for YOUR (& everyone else's) reference of YOUR LIBEL_of myself

    APK

    P.S.=> Oh, I am going to have a FIELDDAY on YOUR_ASS_fucker - catching you not ONLY IN LIES above, but also in the fact you are a GODLESS_fucking LOSER - come on, say something, question the above where you LIED fucker ("it was not me saying it" but it WAS in those links calling me a nutcase essentially when YOU SAID YOU DID NOT (because it IS grounds for SUING THE LIFE OUT OF YOUR WORTHLESS_ASS because your statements are NOT BACKED BY actual psychiatric_pros in professional psychiatric_grounds_LIBELING ME)) - oh, you are NEVER going to LIVE THIS DOWN & believe you me - I am going to MAKE SURE you don't - live with your_HUMILIATION loser..._apk

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