A study regarding the environmental management system of ready mixed concrete production in Turkey

Coşgun, Nilay; Esin, Tülay

doi:10.1016/j.buildenv.2005.06.012

Cited by 9 publications

(4 citation statements)

References 5 publications

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“…Regular controls should be carried out in all business units, processes should be monitored, staff should be trained, all expenses of the enterprises should be audited, and energy reduction measures should be investigated. 45,46 The environmental problems arising from ready-mixed concrete plants were evaluated by classifying them as the amount and types of energy used, solid waste management, air, water, soil pollution emission amounts and types, and fossil fuels used. By evaluating and reducing these impacts, environmental risks will also be reduced.…”

Section: Carbon Footprint Managementmentioning

confidence: 99%

Carbon Footprint Evaluation of a Ready-Mixed Concrete Plant

YESILYURT,

KOCADAGISTAN

2023

NanoEra

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Rapid population growth and the vital needs of people are increasing day by day. One of these needs is nutrition, clothing, and shelter. As the housing needs of people increase, the construction and building sector is progressing in parallel with technological developments. Innovations related to the production of ready-mixed concrete and cement, which are indispensable building elements of the construction sector, make human life easier. These sectors should be evaluated in terms of greenhouse gas emissions and sustainable environment. Identifying, calculating, and reporting data in these sectors for carbon footprint calculation contribute to environmental issues and development for consumers and organizations. In this study, the carbon footprint of a ready-mixed concrete plant is calculated, and its environmental impacts and suggestions for reducing carbon emissions are given. It was found that the total carbon emission caused by consumption amounts was 1 038 396 tons of carbon dioxide equivalent. According to the results obtained in the carbon footprint in the greenhouse gas calculation, 98.383% of the total emission (1 021 604 tons of carbon dioxide equivalent) is carbon dioxide emission, 0.149% (1551 tons of carbon dioxide equivalent) is methane emission, and 1.468% (15 242 tons of carbon dioxide equivalent) is diazot monoxide emission.

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Section: Carbon Footprint Managementmentioning

confidence: 99%

Carbon Footprint Evaluation of a Ready-Mixed Concrete Plant

YESILYURT,

KOCADAGISTAN

2023

NanoEra

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“…Wastewater with solid content below 40 g/L (40,000 ppm) can be used for mixing for producing fresh concrete with comparable compressive strength (Aldossary et al, 2020, Sandrolini & Franzoni, 2001, the number is below 1,000 ppm. The pH of wastewater is not always been maintained by the ready-mix concrete factory (Cosgun & Esin, 2006, Ghrair et al, 2018. The alkalinity of the wash water can be reduced by using barium chloride and carbon dioxide bubbling (Mohamed et al, 2015) or by using strongly acidic volcanic ash or flue gas of solid waste incineration plant (Morita, 1992).…”

Section: Simulation Of Wastewater Treatmentmentioning

confidence: 99%

“…Concrete wash water is usually disposed of at the job site, at a landfill, or into a concrete wash water pit in the readymix plant (Choi et al, 2021, Gowda et al, 2008, Chini & Mbwambo,1996. In Turkey, 97% of its ready-mix factory use settling ponds to treat their wastewater (Cosgun & Esin, 2006). There are also several ways of treating concrete factory wastewater that has been applied elsewhere, such as using a combination of aluminium sulfate (Al2(SO4)3) or ferric chloride (FeCl3) and the natural coagulant Moringa oleifera (MO) (Paula et al, 2016).…”

Section: Introduction 11 Backgroundmentioning

confidence: 99%

Treatment of Mixer Truck Wash Water of a Ready-mix Concrete Batching Plant Using a Low Cost Modified Sand Filter

2022

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ABSTRAK Pembangunan infrastruktur dan perumahan membutuhkan beton dalam jumlah besar, yang sebagian dipasok oleh pabrik beton siap pakai. Tingginya kebutuhan air dan produksi air limbah oleh industri ini menyebabkan masalah lingkungan yang signifikan. Sebuah pabrik beton di Bali mengolah air limbahnya dengan lima kolam sedimentasi sederhana yang dilengkapi dengan saringan ijuk antar kolam dan kemudian air hasil olahan dibuang ke hutan bakau di sekitarnya. Meskipun nilai Chemical Oxygen Demand (COD) telah diturunkan dari 316,149 mg/L menjadi 146 mg/L, air limbah ini masih berpotensi merusak biota hutan bakau. Padahal, air bisa didaur ulang untuk membersihkan peralatan atau bahkan menjadi air proses. Penelitian ini bertujuan merancang proses pengolahan yang sederhana dan murah beserta peralatannya. Air limbah yang berasal dari bak pengendapan di pabrik beton siap pakai diolah di laboratorium menggunakan tawas tetapi hasilnya tidak memuaskan sehingga dipilih metode fisika dengan menggunakan kolam sedimentasi dan saringan pasir lambat yang dimodifikasi, dan berhasil menurunkan nilai COD sebesar 82,83% pada pH 12,27 dan mendaur ulang 84% air limbah atau 26,7% kebutuhan air total industri ini. Kata kunci: pengolahan air limbah, beton siap pakai, desain bangunan, daur ulang air ABSTRACT Infrastructure and housing developments require vast quantities of concrete, which are supplied by the ready-mix concrete (RMC) batching plant. This industry's high water demand and wastewater generation have caused significant environmental problems. An RMC batching plant in the southern part of Bali produces liquid waste, which is disposed of into the surrounding mangrove forests after being treated using five sequential unlined wash water ponds and palm fibre. Although the COD value has been decreased from 316.149 mg/L of untreated wastewater to 146 mg/L after treatment, this still has the potential to harm the mangrove biota. On the other hand, the water can still be reclaimed for cleaning purposes or even incorporated into process water. The work aims to design a low cost and simple wastewater recycling process and equipment. Wastewater was collected from the existing settling basin at the RMC batching plant and treated in the laboratory. It was found that the chemical treatment of wastewater using alum did not produce satisfactory results; therefore, a physical method was chosen by employing a sedimentation pond and a modified slow sand filter. It removed 82.83% of the COD at pH 12.270 and reclaimed 84% wash water or 26.7% of total water needed for this industry. Keywords: wastewater treatment, ready-mix concrete, building design, water recycles

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“…O primeiro trabalho justifica que a mesma não pode ser descartada em decorrência do elevado pH e matéria em suspensão, já o segundo destaca os efeitos prejudiciais do descarte em solo ou água. Cosgun e Esin [14] também enfatizam os efeitos negativos do descarte dos resíduos da central dosadora de concreto no meio ambiente considerando o impacto na estrutura natural, nos habitats e na saúde humana. Contudo, Paula e Ilha [12] propõe o uso dessa mesma água residuária, porém com a introdução de algum tratamento, para atividades como pulverização e lavagem dos caminhões betoneiras.…”

Section: Introductionunclassified

Gestão da água em usina de concreto: análise do emprego de Moringa oleifera no tratamento de água residuária e proposta de reusoapós tratamento

Silva

Paula

2019

Matéria (Rio J.)

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RESUMO O setor da construção civil, um dos maiores consumidores de matérias-primas e recursos hídricos, vem mostrando sinais rumo à uma produção sustentável. Nesse seguimento, a gestão e reuso de águas residuárias nas centrais dosadoras de concreto corroboraria para diminuição dos efeitos negativos da área com o meio ambiente. No entanto, para o reuso de água residuária tornar-se viável é necessário efetuar o seu tratamento, visando a adequação dos parâmetros como, por exemplo, alcalinidade, cloro residual livre, dureza, pH e turbidez com as normas vigentes. Sendo assim, o presente estudo avaliou as possíveis aplicações para água residuária tratada com o uso do extrato aquoso de Moringa oleifera obtido de duas formas, sendo: apenas em água destilada (EAMO) e outra em água destilada com nitrato de cálcio (EAMO/Ca2+) e com o coagulante químico sulfato de alumínio (Al2(SO4)3). Os tratamentos analisados possibilitaram redução da alcalinidade em 22% com EAMO/Ca2+ e 16% com o extrato Al2(SO4)3, diminuição da dureza em 11,4% com EAMO/Ca2+ e 4,7% com extrato Al2(SO4)3 e eficiência de remoção da turbidez superior a 85% para todos os coagulantes estudados na dosagem ótima. O pH e o cloro residual livre mantiveram-se constante. Dessa maneira, o tratamento considerado como o melhor, efetuado com EAMO/Ca2+, possibilita empregabilidade da água residuária para fins não potáveis e amassamento do concreto.

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A study regarding the environmental management system of ready mixed concrete production in Turkey

Cited by 9 publications

References 5 publications

Carbon Footprint Evaluation of a Ready-Mixed Concrete Plant

Carbon Footprint Evaluation of a Ready-Mixed Concrete Plant

Treatment of Mixer Truck Wash Water of a Ready-mix Concrete Batching Plant Using a Low Cost Modified Sand Filter

Gestão da água em usina de concreto: análise do emprego de Moringa oleifera no tratamento de água residuária e proposta de reusoapós tratamento

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