Abstract

Sugarcane bagasse ash (SCBA), a by-product from sugar industry, has been evidently reported as a potential alternative cementitious material that can partially replace cement. In spite of its high valorization potential in cement production, the large quantity of bagasse ash generated from Indian sugar plants (44,220 tonnes/day) is entirely unutilized and disposed as waste. Lack of comprehensive SCBA availability and accessibility studies are the major deterrents for the effective utilization of SCBA in industrial scale applications. This study investigated the availability of bagasse ash, fly ash, and slag in India, and their accessibility to existing cement plants. A comparative network analysis using ArcGIS was adopted, to assess the benefits of using bagasse ash in cement plants. Bagasse ash was found to be a potentially viable supplementary cementitious material in three out of the five major sugar-producing states of India. It is shown that switching over to bagasse ash results in significant reduction of carbon emissions associated with logistics (5.41 million tonnes/year). Strategic locations for new cement plants were identified based on availability of bagasse ash, using location-allocation analysis. A practical framework has also been presented for the effective utilization and recycling of sugar industry wastes in the construction sector.

中文翻译：

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在印度建筑业中糖业废物的有效利用：地理空间方法

摘要

据报道，制糖业的副产品甘蔗渣（SCBA）是一种潜在的胶凝材料，可以部分替代水泥。尽管其在水泥生产中具有很高的增值潜力，但印度制糖厂产生的大量蔗渣灰（44,220吨/天）完全未被利用，并作为废物处理。缺乏全面的SCBA可用性和可访问性研究是在工业规模应用中有效利用SCBA的主要障碍。这项研究调查了印度甘蔗渣，粉煤灰和矿渣的可利用性，以及它们对现有水泥厂的可利用性。通过使用ArcGIS进行的比较网络分析，以评估在水泥厂中使用蔗渣灰的好处。在印度五个主要产糖州中的三个州中，发现蔗渣灰可能是一种可行的补充胶凝材料。结果表明，转用蔗渣灰可显着减少与物流相关的碳排放（541万吨/年）。使用位置分配分析，根据甘蔗渣灰的可利用性，确定了新水泥厂的战略位置。还提出了一个切实可行的框架，用于在建筑部门有效利用和回收制糖业废物。使用位置分配分析，根据甘蔗渣灰的可利用性，确定了新水泥厂的战略位置。还提出了一个切实可行的框架，用于在建筑部门有效利用和回收制糖业废物。使用位置分配分析，根据蔗渣的可利用性确定了新水泥厂的战略位置。还提出了一个切实可行的框架，用于在建筑部门有效利用和回收制糖业废物。