Cement industry of China: Driving force, environment impact and sustainable development

Shen, Weiguo; Liu, Yi; Yan, Biao; Jing, Wang; He, Pengtao; Zhou, Congcong; Huo, Xujia; Zhang, Wuzong; Xu, Guangyou; Ding, Qingjun

doi:10.1016/j.rser.2016.11.033

Cited by 183 publications

(53 citation statements)

References 65 publications

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“…Global increase in urbanisation has led to an upsurge in cement demand [4]. The need for local content, availability of raw materials and local demand has resulted in the establishment of more cement plants [5][6][7]. Globally, it was estimated that 2.18 billion tonnes of cement was produced in 2012 [8] while 4.3 billion tonnes of cement were produced in 2014 [4].…”

Section: Introduction Global Pollution and Cement Contributionmentioning

confidence: 99%

Exposure effect to cement dust pollution: a mini review

Adeyanju

Okeke

2019

SN Appl. Sci.

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The aim of this paper is to illuminate the impacts of cement production emissions on the environment. Various research work has shown that countries in sub-Saharan Africa, suffer the most from environmental pollution especially air pollution. One of such contributing factors is the behavioural pattern of workers and traders living close to production plants. Significantly also, data are not available in this region. The need for cement as well as the presence of local raw materials, coupled with the need for local content has resulted in an increase in the number of cement plants. Areas within and around the cement plant are exposed to various air pollutants. These pollutants affect the life and wellbeing of workers, children and people in close communities as well as the flora and fauna. Diseases such as chronic obstructive pulmonary, silicosis, preterm delivery, psychasthenia, endocrine disruption, cancer and infertility are associated with these pollutants. This paper describes the impacts of these pollutants on human's health and plant's growth as well as where studies should focus on in the future. Various high impact papers were selected and cogent findings as it affects different classes of people were discussed in this paper. It is recommended that more data collection, pollutant characterization, risk assessment and dispersion analysis should be carried out in developing countries. More research should be undertaken to determine the impact of alternative fuel and the effectiveness of dust control technologies used in various cement plants.

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Section: Introduction Global Pollution and Cement Contributionmentioning

confidence: 99%

Exposure effect to cement dust pollution: a mini review

Adeyanju

Okeke

2019

SN Appl. Sci.

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“…2a) due to the significant increase in the annual output of both clinker and cement, the SO 2 emission per ton of clinker decreases from 2.45 kg/t in 2000 to 1.12 kg/t in 2010, since the proportion of new suspension preheater (NSP) cement line increases from 10.3% in 2000 to 81.6% in 2010 as shown in Fig. 2b (Shen et al, 2017). In recent years, with limited availability and excessive costs of low-sulfur raw materials and fuels, high-sulfur raw materials and fuels have therefore been more and more utilized in Chinese cement plants.…”

Section: The So 2 Emission From Chinese Cement Industrymentioning

confidence: 95%

Linking the SO2 emission of cement plants to the sulfur characteristics of their limestones: A study of 80 NSP cement lines in China

Zhang

et al. 2019

Journal of Cleaner Production

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In a properly operated new suspension preheater (NSP) cement line, the SO 2 emission is mainly originated from sulfides in the raw meal, and limestone, occupying about 85% wt. of the raw meal, is the dominant sulfur source. However, the sulfur characteristics of limestones and then their influences on the SO 2 emission have not been clarified yet. In the present study, 80 NSP cement lines with SO 2 emission > 200 mg/Nm 3 were recorded, the sulfur content and species as well as pyrite morphology of limestones were analyzed and then correlated to their resulting SO 2 emission. The results show that the SO 2 emission of stack gas increases linearly with the SO 3 content of limestone used, and sulfates lead to a 50% reduction in SO 2 emission relative to sulfides. Compared with average SO 2 emission, euhedral pyrite leads to a slightly higher SO 2 emission, whereas metasomatic pyrite results in a lower SO 2 emission, which can be attributed to the effects of accompanying elements (Ti, F, K, and Al etc.) on the desulfurization reaction and clinkerization in the whole NSP cement line. The relationships proposed can be used to predict the SO 2 emission based on the sulfur characteristics of limestone and to rationally utilize high-sulfur limestone in cement industry.

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“…Cement is the largest manufactured product and the basic ingredient for the construction industry. 87 The cement industry has a strong and long established track record reusing numerous types of by-products and wastes from other industries, such as art paper sludge and paper mill sludge. 88,89 Previous studies have been carried out with various types of sludge or sludge ash as raw materials for cement production.…”

Section: Sludge Cementmentioning

confidence: 99%

Strategies of valorization of sludge from wastewater treatment

Sheng

Zhang

2018

J of Chemical Tech & Biotech

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Sludge is regarded as a potential source to achieve valorization via strategies such as resource recovery, sludge based adsorbents preparation, bioflucculants production, sludge manufacturing construction materials preparation, sludge composting and thermal valorization, which are currently common and effective strategies. Appropriate treatment strategies of sludge are of great importance worldwide for the fast growing population and rapidly increasing waste. This mini review summarized some widely used and effective strategies to achieve sludge valorization based on whether the strategy would utilize or reuse the potential of sludge to obtain valuable product and eliminate secondary pollution. Anaerobic digestion of sludge is perceived as a potentially cost‐effective method to achieve sludge reduction and resource recovery including carbon, nitrogen, phosphorus resource recovery coupled with other technologies. Utilizing sludge as raw material for preparation of valuable products including sludge based adsorbents, bioflocculants and construction materials is another aspect to achieve sludge valorization. Sludge composting and thermal valorization are also introduced in the mini review since the two strategies could also achieve sludge valorization. In addition, the strategies mentioned were discussed and analyzed in the mini review from environmental and economic aspects. © 2017 Society of Chemical Industry

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Cement industry of China: Driving force, environment impact and sustainable development

Cited by 183 publications

References 65 publications

Exposure effect to cement dust pollution: a mini review

Exposure effect to cement dust pollution: a mini review

Linking the SO2 emission of cement plants to the sulfur characteristics of their limestones: A study of 80 NSP cement lines in China

Strategies of valorization of sludge from wastewater treatment

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