Proactive waste treatment
As a relatively large-scale livestock farm, with 100 sows and 300-400 pigs per litter, Mr. Bui Van Linh in Cau Dong residential area, Cong Hoa ward (Chi Linh) always focuses on waste treatment. For pig manure, he uses a pre-processing agent, then uses a dryer and bags it, selling it to people who need to fertilize plants and grow rice. As for wastewater, he treats it with a biogas tank and uses it to water crops. "There is almost no excess waste on the farm, we use it all for agricultural production," said Mr. Linh.
Unlike Mr. Linh, Mr. Luyen Huy Doan in Ngo Quyen commune (Thanh Mien) uses earthworms to treat cow waste. The manure is treated with enzymes, then brought to the earthworm breeding area. This type of worm processes substances in cow manure into organic fertilizer, which is very useful for plants.
Hai Duong currently has 1,228 livestock farms, including 776 pig farms, 450 poultry farms, and 2 cow farms. Each year, the amount of waste from livestock and poultry in the province is about 1.5 million tons.
Need to build a point model
At the Leaders' Summit within the framework of the 26th United Nations Climate Change Conference held in 2021, Vietnam pledged to promote measures to respond to climate change, reduce greenhouse gas emissions, and bring net emissions to zero by 2050. Vietnam's livestock industry is a sector that generates a lot of greenhouse gas emissions, accounting for 18-20%, so reducing emissions needs attention.
At the workshop “Sustainable livestock development, emission reduction, carbon market access in Hai Duong” co-organized by the Provincial Union of Science and Technology Associations in May in Thanh Ha district, Dr. Tong Xuan Chinh, Deputy Director of the Department of Livestock (Ministry of Agriculture and Rural Development) said that emission reduction in livestock farming is how to make the input factors fully utilized, without generating waste. Carbon credits are licenses or certificates that can be bought and sold, providing the credit holder with the right to emit 1 ton of carbon dioxide.
According to Mr. Nguyen Ngoc Thai, Director of the Provincial Center for Consulting, Training and Development of Science and Technology, livestock farmers have applied closed models such as: gardens, ponds, barns; gardens, ponds, barns, forests; using bio-bedding, building biogas works, raising insects to treat waste... To move towards the carbon market, the center is coordinating to propose the project "Developing the biogas market combined with exploiting carbon credits to serve the goal of developing a sustainable agriculture sector without waste" with 2 phases, from 2024-2025 and from 2026. In which, 6-10 large-scale livestock households will be selected to build biogas tanks of thousands of m3 to treat livestock waste. At that time, livestock farmers will have the opportunity to be granted carbon credits to sell on the market. "Implementing emission-reducing livestock farming to move towards the carbon market is an inevitable trend. However, this market is newly formed and new, so learning and coordinating with these foreign units needs to be focused on," said Mr. Thai.
Although he has applied sustainable livestock farming models associated with green growth or circular livestock farming, Mr. Bui Van Linh said he has not heard of carbon credits in livestock farming so he does not know how to target this market.
To help people understand the carbon market, specialized agencies need to build a legal corridor and standardize low-carbon livestock farming. Build pilot models and propagate replication so that livestock farmers know and implement...
Over the past few years, Vietnam has successfully conducted carbon credit sales worth about 60 million USD. Of which, the Vietnam Livestock Biogas Program has been implemented in 53 provinces with 181,683 biogas plants. Through this gas program, Vietnam has sold 3,072,265 carbon credit units, earning 8.1 million USD.
Source: https://baohaiduong.vn/lam-the-nao-de-nganh-chan-nuoi-hai-duong-tiep-can-thi-truong-carbon-386684.html
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