For Prelims: Potash, Biomass, Pilot plant, Technology transfer
For Mains: Agriculture: Fertilizers and soil nutrients; Environment: Waste management and resource recovery
Source:
Hindustan
5 facts for one-day exams
SSC, railway, police and teaching exams ask direct questions like these.
- CIMFR is located in Dhanbad, Jharkhand.
- CIMFR's fertilizer contains at least 50% potassium oxide.
- The industrial-site pilot plant had a capacity of one tonne per day.
- The technology received a patent in 2023.
- Sugarcane bagasse ash and distillery spent-wash ash are feedstocks for the technology.
The news
The Central Institute of Mining and Fuel Research (CIMFR), Dhanbad, has developed an eco-friendly technology to produce potash fertilizer from biomass waste, including sugarcane bagasse ash and distillery spent-wash ash. CIMFR director Professor A.K. Mishra said the technology was achieved in 2023–24 and patented in 2023. The institute has now been made a member of the critical minerals mission under NITI Aayog, giving it a national role in the sector.
The fertilizer contains at least 50% potassium oxide, along with sulfur and calcium. No harmful chemicals or acids are used in the recovery process, making it fully environment-friendly, according to Dr Maisto, who led the pilot project at CIMFR's Digwadih campus. A one-tonne-per-day pilot plant was successfully tested at an industrial site. Mishra said discussions with industry are underway for commercial production, and a Chennai-based company has been given the technology for a planned distillery pilot in Sivaganga district, Tamil Nadu.
Why in the news?
CIMFR has been made a member of the critical minerals mission under NITI Aayog after developing a patented, eco-friendly potash fertilizer technology from biomass waste, offering a potential domestic alternative to imported potash.
Why does India need an indigenous potash source?
India depends heavily on imports for its potash requirements, including muriate of potash (MOP). At the same time, ash from sugar mills and distilleries creates a disposal problem. CIMFR's technology connects these two issues by recovering a valuable agricultural input from waste, potentially reducing import dependence and foreign-exchange expenditure.
What has the technology achieved and what remains?
The technology has been successfully tested at pilot scale and patented. The fertilizer contains at least 50% potassium oxide, sulfur and calcium, and is produced without harmful chemicals. However, commercial production has not yet started. CIMFR is in talks with entrepreneurs and has collaborated with a Chennai-based company for a distillery pilot in Tamil Nadu. Wider adoption depends on viable commercial production, consistent feedstock supply and actual farmer uptake.
Jharkhand connection
Facts and terms for exams
- Potash:
- Potash refers to potassium-containing materials used primarily as fertilizers to supply potassium to crops.
- Biomass:
- Biomass is organic material derived from plants or animals that can be used as a resource.
- Pilot plant:
- A pilot plant tests a process at an intermediate scale before possible commercial-scale operation.
- Technology transfer:
- Technology transfer is the process of making technical knowledge or a process available for use by another organisation.
Why it matters for exams
Exams: JPSC, JSSC
Syllabus: Agriculture: Fertilizers and soil nutrients; Environment: Waste management and resource recovery
Common mistake: Examiners may swap pilot testing with established commercial production: the one-tonne-per-day pilot was successfully tested, while commercial production is being pursued.
Mains question
Examine the significance of CIMFR's biomass-waste potash technology for India's fertilizer self-sufficiency and waste management. Discuss the challenges in scaling it up.
Stuck? Get it in one tap
CIMFR has developed a way to recover potash fertilizer from ash produced by sugarcane-based industries. Potash supplies potassium, a nutrient needed by crops. A pilot has been tested, and the institute is working with industry towards commercial production.
- CIMFR is located in Dhanbad, Jharkhand.
- CIMFR's fertilizer contains at least 50% potassium oxide.
- The industrial-site pilot plant had a capacity of one tonne per day.
- The technology received a patent in 2023.
- Sugarcane bagasse ash and distillery spent-wash ash are feedstocks for the technology.
- Agriculture: Fertilizers and soil nutrients
- Environment: Waste management and resource recovery
Related concepts: Potash, Biomass, Pilot plant, Technology transfer
Practice questions
Pick an answer, then read the explanation.
- Q1Easy
Which institution developed the potash fertilizer technology using biomass waste ash?
Explanation: The Central Institute of Mining and Fuel Research developed the technology at Dhanbad. NITI Aayog guides its critical-minerals work, while sugar mills and distilleries generate relevant ash.
- Q2Hard
Consider the following statements about CIMFR's biomass-waste potash technology:
- 1.Sugarcane bagasse ash can be used as a raw material.
- 2.The extraction process requires harmful acids.
- 3.The fertilizer contains sulfur and calcium in addition to potassium oxide.
Which of the statements given above are correct?
Explanation: Statements 1 and 3 are correct: bagasse ash is a feedstock, and the fertilizer also contains sulfur and calcium. Statement 2 is incorrect because the process does not use harmful acids.
- Q3Medium
What is the minimum potassium oxide content of fertilizer made using CIMFR's biomass-waste technology?
Explanation: The fertilizer contains at least 50% potassium oxide. The other figures do not represent the stated minimum.
- Q4Medium
What is the principal intended benefit of CIMFR's biomass-ash potash technology?
Explanation: The technology turns waste ash into a domestic fertilizer input and could reduce import dependence. It avoids harmful acids, and industrial testing remains important for scale-up.
Frequently asked questions
1. What raw materials does CIMFR's potash technology use?
Sugarcane bagasse ash and distillery spent-wash ash are used to produce potash fertilizer.
2. How much potassium oxide does CIMFR's fertilizer contain?
The fertilizer contains at least 50% potassium oxide, along with sulfur and calcium.
3. What was the capacity of the tested CIMFR pilot plant?
The industrial-site pilot plant had a capacity of one tonne per day.
4. Has CIMFR's potash technology reached commercial production?
A pilot has been successfully tested, while industry discussions and technology transfer are being pursued for commercial production.
All sources
- Original11 November 2026 · Read story
