The results confirmed the successful production and field application of odorless liquid fertilizer<\/strong> made from dairy manure.
Following these results, JET has begun developing a compact fermentation unit specialized for liquid fertilizer production<\/strong>.<\/p>\n\n\n\n
![\"\"](\"https:\/\/jet-e.jp\/en\/wp-content\/uploads\/sites\/2\/2025\/10\/231018\u633f\u5165\u753b\u50cf-1024x576-1.png\")
<\/figure>\n\n\n\n\n\n\n\n
1. Background | Local Governments Concerned About Odors in Livestock Farming Areas<\/h2>\n\n\n\n
Livestock manure, when properly composted, can serve as a valuable agricultural resource such as fertilizer or soil conditioner. Odor pollution not only affects working and living environments in the area but also impacts tourists unfamiliar with livestock odors<\/strong>. In March 2023<\/strong>, Beru-chan-tachi no Ouchi Co., Ltd. installed an ERS unit to process dairy cow manure into liquid fertilizer<\/strong>. After approximately six months of operation<\/strong>, in September 2023<\/strong>, the company confirmed stable processing performance and odor-free outputs<\/strong>, along with deodorization effects inside the composting facility. (1) April\u2013November<\/strong><\/p>\n\n\n\n (2) December\u2013March<\/strong><\/p>\n\n\n\n JET\u2019s ERS (Rapid Fermentation Resource System)<\/strong> performs aerobic microbial fermentation<\/strong>, rapidly decomposing odor-causing substances within a few hours under sealed conditions. The resulting product meets high-quality standards<\/strong>, with an E. coli<\/em> most probable number below 30 per 100g, ignition loss over 90%<\/strong>, and a C\/N ratio of 12\u201315%<\/strong>, making it also suitable as compost with about 70% moisture content.<\/p>\n\n\n\n Unlike conventional methods that require sawdust addition for moisture adjustment, ERS does not use sawdust. Amid rising fertilizer prices, JET plans to obtain certification for this \u201codorless liquid fertilizer\u201d as a special fertilizer<\/strong> and promote its commercial distribution.<\/p>\n\n\n\n JET plans to release a new compact fermentation system<\/strong> specialized for liquid fertilizer production in spring 2024<\/strong>. JET also plans to publish analytical data on the resulting products<\/strong> in upcoming reports.<\/p>\n\n\n\n The company remains committed to utilizing diverse organic wastes\u2014such as municipal waste, diapers, sewage, sludge, livestock manure, vegetable scraps, food residues, construction waste, pruned branches, and other biomass<\/strong>\u2014as valuable resources rather than disposal materials. The ERS system<\/strong> uses indigenous microorganisms<\/strong> naturally present in the surrounding soil to sterilize, ferment, and dry organic matter within one day<\/strong>, converting waste into valuable resources. \u2013 Rapid Fermentation Treatment of Dairy Manure Expected to Improve Farmland Conditions and Reduce Odor-Related […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[15],"tags":[],"class_list":["post-810","post","type-post","status-publish","format-standard","hentry","category-press-release"],"acf":[],"_links":{"self":[{"href":"https:\/\/jet-e.jp\/en\/wp-json\/wp\/v2\/posts\/810","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/jet-e.jp\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/jet-e.jp\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/jet-e.jp\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/jet-e.jp\/en\/wp-json\/wp\/v2\/comments?post=810"}],"version-history":[{"count":1,"href":"https:\/\/jet-e.jp\/en\/wp-json\/wp\/v2\/posts\/810\/revisions"}],"predecessor-version":[{"id":814,"href":"https:\/\/jet-e.jp\/en\/wp-json\/wp\/v2\/posts\/810\/revisions\/814"}],"wp:attachment":[{"href":"https:\/\/jet-e.jp\/en\/wp-json\/wp\/v2\/media?parent=810"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/jet-e.jp\/en\/wp-json\/wp\/v2\/categories?post=810"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/jet-e.jp\/en\/wp-json\/wp\/v2\/tags?post=810"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
However, when poorly managed or insufficiently fermented, it can generate strong odors<\/strong> and cause water pollution<\/strong> through runoff into rivers and groundwater.
Such environmental problems have raised growing concern among local authorities, especially in livestock-intensive regions.<\/p>\n\n\n\n
As Japan seeks to promote regional tourism and inbound demand<\/strong>, it is essential to prevent such environmental nuisances.
To achieve this, there is a growing need for methods that allow high-quality composting and deodorization in a shorter time<\/strong>, minimizing the burden on livestock farmers.<\/p>\n\n\n\n
\n\n\n\n2. Demonstration | Beru-chan-tachi no Ouchi Co., Ltd. (Shimonoseki City, Yamaguchi Prefecture)<\/h2>\n\n\n\n
![\"\"](\"https:\/\/jet-e.jp\/en\/wp-content\/uploads\/sites\/2\/2025\/10\/240110\u56f3\u89e3_\u3079\u308b\u3061\u3083\u3093\u305f\u3061\u306e\u304a\u3046\u3061\u793e-1024x299-1.png\")
<\/figure>\n\n\n\n
Facing a decline in milk demand, the company introduced ERS not only to continue composting and bedding production but also to utilize its capability to generate odorless liquid fertilizer<\/strong>.
Producing liquid fertilizer without drying has reduced fuel consumption and overall costs.<\/p>\n\n\n\n
Future plans include both on-site application and commercial sales of the liquid fertilizer<\/strong>.<\/p>\n\n\n\n
\n\n\n\nSeasonal Variations in ERS Operation and Product Utilization<\/h3>\n\n\n\n
\n
\n
\n\n\n\nFacility Overview<\/h3>\n\n\n\n
Item<\/th> Details<\/th><\/tr><\/thead> Processed Material<\/td> Dairy cow manure<\/td><\/tr> Processing Capacity<\/td> 25 tons\/day<\/td><\/tr> Equipment<\/td> ERS Type 5U<\/td><\/tr> Output<\/td> Liquid fertilizer, compost<\/td><\/tr> Location<\/td> Shimonoseki City, Yamaguchi Prefecture<\/td><\/tr> Installation Date<\/td> March 2023<\/td><\/tr> Subsidy<\/td> Livestock and Dairy Profitability Enhancement Program (Facility Improvement Project)<\/td><\/tr> Note<\/td> Member of Yamaguchi Prefecture Dairy Cooperative Association<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
\n\n\n\n3. Features | Fast, Odorless, and Soil-Friendly \u2013 Even for Dairy Manure<\/h2>\n\n\n\n
For dairy manure that would normally require two months of composting<\/strong>, ERS produces odorless liquid fertilizer<\/strong> in just a few hours.<\/p>\n\n\n\n
As a result, it achieves higher organic content<\/strong> and prevents long-term agricultural soil issues.
Additionally, ERS-treated materials do not cause groundwater contamination, addressing the rising environmental concerns associated with agriculture-related nutrient leakage.<\/p>\n\n\n\n![\"\"](\"https:\/\/jet-e.jp\/en\/wp-content\/uploads\/sites\/2\/2025\/10\/20221216_\u7cde\u5c3f\u51e6\u7406\u30a4\u30e1\u30fc\u30b8\u56f3-1024x511-1.png\")
<\/figure>\n\n\n\n
\n\n\n\nThe Five Key Benefits of Using ERS Liquid Fertilizer in Conventional Composting Facilities<\/h3>\n\n\n\n
\n
\n\n\n\n4. Outlook | Development of Compact Fermentation Equipment Specialized for Liquid Fertilizer Production<\/h2>\n\n\n\n
The unit eliminates the drying process, reducing equipment size and preventing wastewater generation.
For example, on a farm with 300 head of cattle<\/strong> operating four cycles per day,
a conventional 25-ton unit can be replaced with a 6-ton compact system<\/strong>, greatly reducing capital investment.<\/p>\n\n\n\n
Through this approach, JET aims to maximize regional environmental efficiency<\/strong> and contribute to the realization of a circular economy<\/strong>.<\/p>\n\n\n\n
\n\n\n\nAbout ERS<\/h3>\n\n\n\n
The resulting low-moisture materials can be used as fuel, compost, fertilizer, feed, or bedding<\/strong>, helping achieve zero-emission operations<\/strong>.<\/p>\n","protected":false},"excerpt":{"rendered":"