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| The tons of dust from this asphalt plant previously posed a difficult problem with the risk of environmental pollution. |
In mid-2024, the asphalt concrete production plant of GREEN Song Cong Production and Trading Co., Ltd. officially commenced operations. Along with the increase in production, the amount of dust recovered from the filtration system also increased rapidly. After only 9 months, the accumulated amount exceeded 3,000 tons.
In reality, many businesses often handle waste using traditional methods, incurring costs but generating little added value. However, at GREEN Song Cong Production and Trading Co., Ltd., the approach has shifted towards a more proactive one. Instead of viewing it as a burden, the company has launched a technical innovation initiative, encouraging its staff and engineers to find solutions directly from production practices.
Based on that direction, the research topic "Studying the incorporation of recovered asphalt dust powder into cement production" was formed, led by Mr. Tu Nhu Hien, Head of the Technical Department. The goal was to both utilize the recovered powder, reduce input material costs, and limit environmental emissions.
The research journey began in the laboratory. Samples of asphalt dust were collected and meticulously analyzed for chemical composition, fineness, color, and mechanical properties. Numerous mixing options were continuously tested. Each technical parameter was carefully verified before reaching a conclusion. The results showed that the recovered asphalt dust, accounting for approximately 2% of asphalt production, could be used as an additive in cement production at a rate of 3-5%. Notably, this addition did not affect product quality; in fact, some characteristics, such as plasticity, were even improved.
Based on the test results, the research team quickly refined the technical process. To implement the initiative, the company proactively adjusted its production line. Equipment was added to transport the recovered powder into silos, which are then directly fed into the cement mixing process. The entire operation is a closed-loop system, tightly controlled, and fully meets all technical requirements.
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| The benefits are clear: Each ton of cement after mixing saves 10,270 VND in raw material costs. |
The benefits are demonstrated by concrete figures. Each ton of mixed cement saves 10,270 VND in raw material costs. With an annual production of approximately 40,000 tons, the total savings exceed 410 million VND. The greater value of the solution lies in its environmental aspect. Over 3,000 tons of previously discarded waste are reused, significantly reducing the burden on waste treatment. The production space becomes cleaner, and the risk of pollution is better controlled.
More importantly, the initiative has brought about a shift in production thinking. Waste is no longer seen as something to be discarded, but as a resource that can be exploited and reused. This practice also suggests a direction for manufacturing businesses. Instead of focusing solely on waste treatment at the output, more emphasis should be placed on reuse within the production process. This approach both reduces costs and contributes to building a corporate image associated with environmental responsibility.
From a source of pollution that once put pressure on the environment, new value has been created. And from this story, the message becomes clearer: when businesses proactively act for the environment, economic efficiency can absolutely go hand in hand and be sustainable.
Source: https://baothainguyen.vn/kinh-te/202605/loi-ich-keptu-mot-sang-kien-2ed01a0/
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