Modern Farming: Fertilizing Plants with Synthetic Gypsum

Gypsum based fertilizer has top levels of calcium and sulfur, and is the world’s oldest and commonly used non-nitrogen-based fertilizers.

The nutrients that plants need in order to grow are the same nutrients that industry experts assert can be derived from the gypsum byproduct produced from coal-fired power stations. Gypsum has proven to have a wide variety of uses including being used to make drywall, cement filler, plaster of Paris, and even as a means of thickening tofu.

Gypsum can be found naturally all over the world in massive deposits, in places like the U.S., China and Iran. However, mining isn’t always practical, or economically viable. Densely populated countries like India, Vietnam, and China have been using the method of flue-gas desulfurization for years to remove sulfur dioxide and create what is commonly known as FGD gypsum. This gypsum is considered synthetic, but is almost identical to the material being mined throughout the world.  

Mined Gypsum and FGD Gypsum particles alike are consistent in their small size and ability to react in chemical and non-chemical reactions. Power stations that have not found a use for the byproducts created through the burning of coal such as fly ash, bottom ash, gypsum and more, are regrettably land-filled, costing companies money, time and energy to maintain these sites, and wasting land that could be put to better use.

FGD Gypsum has been determined safe for agricultural use through many studies, confirmed worldwide. The next step in this process is adaptation.  Join us at Coal Ash Asia 2019, August 22-24, in Youyu County, Shanxi Province, China, to discuss utilization and applications for FGD Gypsum and other highly useful byproducts from coal-fired power stations.

To learn more click below:

Announcement: Coal Ash Asia 2019 Confirmed!


It is with great excitement that we announce the dates of Coal Ash Asia 2019!

This year’s prestigious coal ash industry conference will take place August 22-24, 2019, in Youyu, Shanxi Province, China. Once again the amazing support from the Shuozhou Government and the Institute for Technical Information for the Building Materials Industry in Beijing, have made it possible to invite international participation, research, and technology to CAA2019. Attendees have access to three days of oral presentations, trade exhibition, poster exhibition, as well as off site tours that include unique access to local coal ash utilization projects, and local cultural sites and scenic tours.

Included in the international attendee package is all domestic transportation, meals from the evening of August 21st to the afternoon of August 25th, access to all conference components listed above, a copy of conference materials including the official CAA2019 handbook, and follow up services provided by AsianCAA and their sponsors.

Check out this year’s tracks:

Coal Ash Processing and High Value Utilization
·       Grinding, Classifying and Superfine grinding
·       Cement, Concrete, Wall Materials and Geopolymer
·       High Value Utilizations: Ceramics, Cenospheres, Fillers
·       Sulphoaluminate cement CalciumSulphoAluminate

FGD Gypsum Utilization
·       Gypsum drying and Calcination
·       Construction Applications: gypsum block, board, mortar
·       Agricultural applications
·       High Strength Gypsum, etc

Coal Gangue and Coal Chemical Residue
·       Processing and Utilization

Metal Extraction
·       Alumina and other metal extraction best practices and methods
 
As with every year, there will be multiple networking opportunities. AsianCAA will have a Business/Academic Matching Sponsor dedicated to helping our attendees get in touch with other industry professionals and facilitate introductions/ translation. Cocktail hours, and tea breaks in the exhibition hall allow for a natural meeting place for industry professionals.

We are now accepting applications for international speakers, sponsors and exhibitors.

To find out more about:

Speaking Position:  http://www.eoapdo.tw/postersandpapers

Sponsorship Opportunities:  


Exhibitor Information:  http://www.eoapdo.tw/exhibitors

Register Now!  http://www.eoapdo.tw/caa-registration

Looking forward to welcoming you at Coal Ash Asia 2019!

First Limestone-Gypsum FGD Systems in Indian Market: Mitsubishi Hitachi Power Systems, Ltd.

- Uttar Pradesh, India

   There are multiple applications for removing sulfur and certain emissions from exhaust flue gases of coal-fired power plants. Some examples are: Wet scrubbing using a slurry of alkaline sorbents, spray-dry scrubbing, wet sulfuric acid process recovering sulfur in the form of commercial quality sulfuric acid; and dry sorbent injection systems.

National Thermal Power Corporation Limited (NTPC) is tackling the first series of limestone gypsum FGD systems in the Indian Market. NTPC is India's largest energy conglomerate with roots going back to 1975. NTPC Ltd is an Indian Public Sector undertaking, engaged in the business of generation of electricity and allied activities. Some of the largest coal fired power stations in India are owned and operated by NTPC.

Mitsubishi Hitachi Power Systems (Japan) has received an order from NTPC to implement India’s first ever Limestone-Gypsum FGD System in India. There will be six systems installed, on top of the already functioning power generating facilities in Central and Northern India. Two of the installation will occur at the Mouda Facility, with a combined capacity of 1320MW. Other systems will be installed at Rihand plants two and three, with 2000 MW capacity total. The FGD system type that will be implemented at these facilities will be a dry spray desulfurizing scrubber system.

Mitsubishi Hitachi Power Systems is a conglomerate of Mitsubishi Heavy Industries, Ltd. (MHI) and Hitachi, Ltd. Since 2014, MHPS has been achieving goals in environmental technologies and project engineering across the globe.

Here is how MHPS is helping NTPC curb emissions of atmospheric pollutants by using off-gas cleanup systems and technologies:

1.     The desulfurization absorbs sulfur oxides, and collects the generated gypsum by reacting limestone with SOx.

2.     The open sprayer system sprays absorbent (limestone slurry) from above the compact flue gas scrubbing tower to absorb harmful SOx efficiently.

More than ever before, India is pursuing rigorous emission-fighting methods for every stage of the energy producing process, from cleaning coal, to processing and utilisation technologies post combustion.  Since coal is still India’s top energy source, adding FGD type systems is actually becoming increasingly common. Only time will tell which technologies will aid India’s goals best and extend to industry wide practice.

Coal Ash Asia 2018: A Recap

-Shuozhou City, Shanxi Province, China

A big thank you to everyone who participated in our Coal Ash Asia 2018 proceedings in Shuozhou City, China, this past September 12-15th. This year's topics focused on the high-value utilization of fly ash, FGD gypsum and coal gangue as well as highlight applications in building material products (cement, concrete, geopolymers etc).

A special thank you to our international delegation (click organisation to visit website):

We would like to extend our humble gratitude to our friends at the China Building Materials Academy’s Institute of Technical Information for the Building Materials Industry, in Beijing. This year’s extension and construction of our annual products and services exhibition was our largest in Coal Ash Asia history, with over 50 exhibitors, and a welcome ceremony which included an orchestra playing on instruments made primarily from fly ash!  

New to this year’s proceedings was our Technology Symposium track geared towards new technologies in fly ash, which included discussion on fly ash based aggregates, fillers, and ceramic tiles. Contributors to this track included: Prof. Chang Jiqing from Guangdong Penghu Industrial Co., Ltd., Zhang Jingjie from Shanxi Hujin Coal Electricity New Material Co., Ltd., Ma Liantao from Hengyuan Waste Utilization, and Peter Ma from Shandong Wei Tong Technology Co., Ltd.

Another new feature was our meeting dedicated to new FGD gypsum technologies. Content included alpha high strength gypsum and calcination methods. Contributors included: Prof. Duan Pengxuan from Guilin University of Technology, Prof. Xiang Lan from Tsinghua University, and Li Yushan from Shandong Pingyi Kaiyuan New Building Material Co., Ltd.

This year also welcomes esteemed contributor, Mr. Bill Martin, who led engaged attendees in his workshop, “Fly Ash Use in Road and Embankment Construction”. Here, Mr. Martin led the discussion for industry experts, who explained real-world projects of American and Australian fly-ash in road projects. Also discussed were new technology and applications in road engineering. Attendees were able to openly discuss and compare methods and approaches to road construction, and receive technical explanations as to the process of applying road and embankment technology from start to finish.

We are excited to announce upcoming events and association/research developments in the new year. Please sign up for our newsletter to stay in touch!

 Here are a few pictures from CAA2018! An Album will be available under past events, in the coming weeks.

Want to Download the Conference program from CAA2018? You can find it on our CAA introduction page.

China Coal Combustion Product Conference: Technological Innovation to Promote Green Development

- Shuozhou City, Shanxi Province, China

The Asian Coal Ash Association would like to thank all who participated in CICCPC 2017, the most recent international exchange in Shuozhou. This year’s topics focused on fly ash and desulfurized gypsum, with the theme "Technological Innovation to Promote Green Development". During the two day event participants engaged in technical exchanges on comprehensive utilization of fly ash and gypsum and discuss the latest scientific research.

One goal of the conference was to further strengthen international and domestic cooperation to promote technological progress and industrial development. Experts from the U.S.A, Germany, Australia, Canada, Ukraine and Japan were among the 700 participants at this year’s event.

The conference was jointly organized by AsianCAA, the National Institute of Building Materials Industry Information, Shuozhou Municipal People's Government, and the Shanxi Economic and Information Commission.  Mr. David Harris, the chairman of the Asian Coal Ash Association gave keynote and regular session speeches during the proceedings. Mr. Harris outlined coal ash and other solid waste utilization technologies, international trade status’ and industry development prospects.

In conjunction with the regular plenary session, was a product/technology exhibition and academic poster display. A variety of specialized meetings also took place at CICCPC. The meeting of the National Coal-based Solid Waste Resource Industry Technology Innovation Strategic Alliance took place for the first time during proceedings. There was a Fly Ash Intelligent Sales Control System meeting as well as a special Green Building Materials and Construction Technology exchange. The Ceramic Association business forum convened during the 23rd of September and  Shuozhou City Investment Promotion and Tourism Promotion gave a special inside look into regional operations. Guests were also able to enjoy an afternoon of horse racing at Youyo County and many other networking opportunities.

Presenters and Attendees at Coal Ash Asia 2017

-- Beijing

With CAA2017 just weeks away, we are proud to be hosting sizable international content and present our final speaker list at this year’s event. Our friends at the Slag Association of Asia will be hosting a concurrent event “Slag and Tailings Asia” in the same location at the Sheraton Grand Dongcheng Beijing Hotel.  Those who have registered for one will gain access to both events. All attendee will receive contact information for all 600 guests at this year's event and complimentary business and academic matching.

View below for our list of International Organisations in attendance as well as organisations presenting at this month’s concurrent events.

List of Presenters_CAA2017.png

To see what we’ll be talking about at this year’s events click the links below for more information: