An interesting development in Thailand’s ongoing crisis is the distribution of “EM balls” to deal with stagnant and noxious flood waters. As The Nation reports:
Business operators in Ratchaprasong area will lead an effort to help flood victims, with the project to produce 100,000 EM balls. … The EM balls will be distributed by Thai Health Foundation. The needy can take home no more than 30 balls (with own boxes).
There was a twitter report that Yingluck had caused a flurry by placing some of the balls in a monk’s alms bowl.
I have some experience with EM. As Tim Forsyth and I wrote in Forest Guardians, Forest Destroyers about an environmental project in northern Thailand:
In order to redress this [ecological] balance the project promotes a product called EM (Effective Micro-organisms). The product has been developed as part of the Japanese “Kyusei nature farming” system for which the overall objectives is to “save the world and mankind through natural faming methods”. According to information from the international EMTrading web site “Effective Microorganisms…are a group of beneficial microorganisms that jump start healthy microbial processes in the soil-plant ecosystem. The use of the EM culture allows gardeners and farmers to concentrate on building and feeding a healthy micro flora in soil.” At the meditation temple in Fang, considerable emphasis is placed on the safety of the EM, with visitors to the demonstration garden urged to drink a glassful. Posters on display at the project state that EM can be used for direct application to plants or it can be used in the production of microbial-based fertiliser. It can also be fed to animals to promote strength and restore health. Various “environmental” uses are also promoted including bathroom and kitchen cleaning and treatment of wastewater. The effectiveness of the EM product is demonstrated in a series of gardens in which various vegetables, herbs and flowers are grown. (p. 188)
A New Mandala reader has written to me raising doubts about the effectiveness of EM for treating stagnant flood waters:
The King’s Chaiphathana Foundation is producing “EM Balls” (mixtures of allegedly benign bacteria) for flood water decontamination, and dozens of charities are now using volunteers to make them instead of sandbags or emergency supply kits. Supposedly, you throw a couple balls into a room full of stagnant floodwater and in a day or two, it cleans it all up. Sort of like eating “good bacteria”-containing yogurt when you’ve got an upset stomach. Only problem is that even the Japanese scientist who came up with the concept says, “…the main limitation in using microbial inoculants is the problem of reproducility and lack of consistent results.” That sounds suspiciously like something that should appear in the Annals of Irreproducible Results. Of course, the Japanese scientist is no match for Thailand’s Number One Scientist. I just hope that some officials at the Chaiphathana Foundation actually tested these things out in real flood zones, rather than just follow royal orders.
I am a little less sceptical. As noted above, at the environmental project in Fang visitors were invited to drink a glass of the EM mixture. I did. My bowels worked like a dream for a few days afterwards. Perhaps Yingluck was doing the monk a favour after all!

A group of Chulalongkorn Engineering Faculty have penned a piece that concludes:
“กล่าวได้ว่าการเติม EM นอกจากจะไม่ช่วยสร้างออกซิเจนแล้ว ยังส่งผลทำให้เกิดปัญหาน้ำเน่าเสียที่รุนแรงขึ้นกว่าเดิมจากการลดลงของปริมาณออกซิเจนในน้ำ รวมถึงเพิ่มสูงขึ้นของปริมาณสารอินทรีย์
It can be said that not only does EM not increase [water] oxygen levels, but worsens water pollution by reducing water oxygen levels and increasing water micro-organism levels.”
http://www.eng.chula.ac.th/index.php?q=th%2Fnode%2F3915
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Thailand’s Chulalongkorn Engineering Faculty made a big mistake!!! http://www.iemss.org/iemss2010/papers/S0/S.0.04.Effective%20Microorganisms%20EMTechnology%20for%20Water%20Quality%20Restoration%20and%20Potential%20for%20Sustainable%20Water%20Resources%20and%20Management%20-%20ZURAINI%20ZAKARIA.pdf
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This sounds like a risky, large scale application of a pretty much untested method. The law of unintended consequences virtually guarantees some nasty surprises. If the Chula Engineering Faculty statement can be believed, and it sounds like they have done some experimentation with EM balls in wastewater, I would guess that one of the early consequences will be fish kills resulting from oxygen depletion. During the previous week I observed a large number of Thais and Burmese workers supplementing their diet with fish netted from the flood waters around Phutthamonthon Sai 4. If the EM balls kill the fish, there will be some angry and disappointed fishermen.
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These two papers say EM balls have almost zero effect for cleaning water:
http://www.springerlink.com/content/ku342v2820237404/
http://wiredspace.wits.ac.za/handle/10539/8556
I only spent 5 minutes looking, I’m sure there is more out there.
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Did you really drink ‘a glass of EM mixture’? What was it really that you drank?
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Yes, ritikrai, I am pretty sure it was. I knew the people who worked there pretty well and I don’t think they would have tricked me. But you never know! AW
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This cancelled conference is a real missed opportunity for EM lovers.
http://emrojapan.com/emnews/content/435.html
Who wouldn’t want to learn about “Thai Army Using EM Technology™ in Developing Society and Community”
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The balls I saw being produced by volunteers at Amarin Plaza yesterday did not look like the ones that Andrew showed above. Andrew’s balls remind me more of the yummy balls at Dunkin donuts.
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Vuthichai – I thought they may go down better with a chocolate coating (and rolled in coconut). A dash of rum also works wonders. Phumpanyaa farang! AW
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Thanks, AW. I would have thought these EM thingies are only meant for external applications. Scientifically, I can’t see how this ‘black box’ is applied with all a-to-z boasted results when no proper characterization is usually done on the mixed culture inside the black box itself.
But if the Chaiphathana Foundation is the producer of these ‘balls’, it probably does’t matter.
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My wife has a friend who makes the liquid stuff they use for that stuff, and she markets it along the lines of “drink this, it is good for all that ails you now or ever could”, along the lines of Dr Feelgood’s Snake Oil Medicine,and pour on garden refuse to make compost, etc, etc…
Take a look at what Vutichai said above and think of what might be said in a Katoey Bar.
Andrew, I lived in Fang and taught English at Fang Chanupathum High School from 1996-2000,and they did not have rum, woulda been Lao Khao, the local rotgut whiskey, and she woulda said Chan Panya-ara Falang.
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I was interested to note in the paper from Malaysia the comment that 6 months after application of EM a sludge filled river had a bottom looking like sand. This would be a worry for the folk here in Thailand who make money from river & canal dredging. Most towns here have stinking drains ( the national standard is the non-draining rectangular profile variety, unlike the U shaped drains I have seen in Malaysia).
Since EM has been around here for a decade, why aren’t municipal officials using it? Are the commissions they receive from dredging just too great?
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http://blogs.wsj.com/searealtime/2011/11/07/thai-flood-decontamination-balls-are-great-if-they-work/?mod=wsj_share_twitter
“takes about 10 to 15 minutes per ball” / “10.000 balls produced”
that is 2500 hours volunteering. hope there are still enough volunteers when help is needed to clean up and rebuild but i’m, afraid thats a bit more uncomfortable work than making balls in airconditioned shoppingmalls.
sorry but i don’t believe that bullcrap with the EM balls. if it’s not proven to work, then it doesn’t. thats how science works. just make some tests already, it’s pretty easy thing to do and should only take a few days to see results. not that the flood started yesterday. just another version of the thousands of tugboats.
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EM Balls at least are cheaper than GT200 bomb detectors and probably at least as effective dollarwise as an Aria blimp fighting southern insurgency.
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If they are worried about polution why don’t they use the paddle floats invented by HMK.?
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Great – from what I can work out so far the most likely result of this load of balls is going to be rotting fish added to the stinking water …. and don’t believe all the reports, the family house in Rangsit has been under at least 1.5m of water for two months now …..
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There was a recent article by The Nation where the dean of the Srinakharinwirot University’s Faculty of Culture, Environment, and Eco-tourism said EM balls worked :
http://www.nationmultimedia.com/national/EM-balls-effective-academics-30169514.html
So I sent her a message to ask for scientific papers, and this was her response:
ตามปกติ ธรรมชาติก็จะมีการฟอกตัวเองอยู่แล้ว นำ้เสียถ้าทิ้งไว้นานๆก็จะมีการตกตะกอน มีการย่อยสลายตามธรรมชาติ แต่จะใช้เวลานานมากๆ เพราะของเสียที่เข้าไปในนำ้มีมากกว่าที่เกิดขึ้นตามธรรมชาติ ดังนั้น จึงต้องเติมจุลินทรีย์ที่มีประสิทธิภาพในการย่อยสลายเพิ่มเข้าไปเพื่อทำงานในการย่อยสลายได้เร็วขึ้นกว่าการฟอกตนเองของระบบนิเวศตามธรรมชาติ. ตำราเกี่ยวกับระบบนิเวศของนำ้ มีค่ะ แต่ต้องหาก่อน
เราพูดตามหลักวิชาการ ตามผลการทดลองที่เคยทำ ตามประสบการณ์ที่สอนและวิจัยด้านจุลชีววิทยามาเกือบสี่สิบปี ใคไม่เชื่อก็ไม่ว่าอะไร เพราะไม่มีผลประโยชน์อันใด ไม่มีเชื้อที่จะขาย มีแต่ให้ฟรี ไม่สามารถบังคับให้ใครเชื่อได้
I’m too lazy to translate it word for word, but for those who can’t read it basically says:
“EM technology is the natural way to clean up bacterial scum. I don’t have any research papers to back up the claims, only 40 years of personal experience with environmental science. If people do not want to believe me, that is ok, I am not selling my reputation. There is no benefit in convincing people who do not want to believe in it.”
(emphasis on it’s my lazy translation, in that my summary doesn’t quite capture what she said – but it’s good enough)
So . . . why doesn’t she have any papers backing up the claims after 40 years of experience? So I emailed her again, saying the scientific community needs to see a paper with a full set of experiments and controls under carefully recorded conditions. Her response:
[quote]ขณะนี้มีผลการใช้ จุลินทรีย์อีเอ็มของมหาวิทยาลัยศรีนครินทรวิโรฒ บำบัดนำ้ท่วมหลายแห่ง ได้ผลดี เช่น ที่หมู่บ้านสวนเกษตร คลอง 5 ใช้อีเอ็มในพื้นที่ 40 ไร่ที่ถูกนำ้ท่วม ก่อนใส่อีเอ็ม นำ้เน่าเหม็นมาก วัดปริมาณออกซิเจนที่ละลายในนำ้ได้ 1 มิลลิกรัมต่อลิตร หลังจากใส่จุลินทรีย์ ภายใน 5 วัน ปรากฎผลว่า นำ้ใส กลิ่นเหม็นหมดไป วัดปริมาณออกซิเจนในนำ้ได้ 4 มิลลิกรัมต่อลิตร ซึ่งเป็นค่าที่เป็นมาตรฐานของนำ้ดี และชุมชนกำลังดำเนินการบำบัดในพื้นที่ใกล้เคียงต่อไป. นอกจากนี้ ผู้ประสบภัยที่มาขอรับจุลินทรีย์อีเอ็มของมหาวิทยาลัยก็รายง่นกลับมาว่าได้ผลดีมาก
และมาขอเพิ่มเติมอีกจำนวนมาก. แม้ว่าบางคนก็เหมือนคุณ ที่ไม่เชื่อ แต่เราให้ลองเอาไปใช้ดูด้วยตนเอง ของฟรีไม่ได้ขายเหมือนคนอื่น เราวิจัยแล้วนำมาใช้ประโยชน์ต่อสังคม ไม่มีผลประโยชน์ส่วนตนมาเกี่ยวข้อง[/quote]
I’m too lazy to translate word for word, but the basic gist is: “I don’t have any papers on it. Such and such people used it and the flood water didn’t smell any more. Therefore EM balls work.”
My opinion: In science, you need to have a control experiment, and all conditions need to be carefully monitored – neither of which she did. She didn’t say which bacteria was affected, nor mentioned what the specific chemistry make-up of the EM balls were (or should be). And frankly, the subjective observation of smell is not a good scientific metric for clean water.
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#18 John – how dare you question a Thai academic, and a dean to boot! What were you thinking? It seems she treated your enquiry with the contempt she felt it deserved … shame on you!
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I see the academic is from the Faculty of Culture, Environment, and Eco-tourism – not from the Faculty of Science, so different paradigms apply to her and John’s thinking. To try to have a discussion in such circumstances is a bit like me trying to talk to an evangelist. However by using such a source for their report The Nation is living up to the standard we have come to expect of them.
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