نتایج جستجو برای: cement plant

تعداد نتایج: 421824  

2012
Saravana Kumar

Study was carried out to assess the impact of cement dust on some selected plant species around industrial area. Deposition effect of cement dust on pigmentation was studied in Azadirachta indica, Pongamia pinnata, Delonix regia, Polyalthia longifolia and Ficus religiosa. Sampling was done about 500 meter distance difference from the cement industry and measurements were taken for all the plant...

2005
M. A. DAOUS M. A. Daous

Cement kiln dust produced in a local cement production plant in Saudi Arabia, along with fly ash resulting from combustion of heavy fuel oil in a local power generation plant were utilized as waste materials blended with ordinary Portland cement at various ratios. These blends were tested for their water requirements for normal consistency, initial setting times, and compression and tensile str...

Journal: :British journal of industrial medicine 1988
H L Abrons M R Petersen W T Sanderson A L Engelberg P Harber

Data on respiratory symptoms and pulmonary function were obtained for 2736 Portland cement plant workers and 755 controls. Personal dust samples contained a geometric mean concentration of 0.57 mg/m3 for respirable dust and 2.90 mg/m3 for total dust. Cement workers and controls had similar prevalences of symptoms, except that 5.4% of the cement workers had dyspnoea compared with 2.7% of the con...

Journal: :journal of occupational health and epidemiology 0
mr rezaei mh sayadi m khaksarnejad

background: soil pollution and accumulation of heavy metals in crops in industrial areas is one of the most important environmental issues threatening the life of plants, animals, and humans. the aim of this study was to determine the concentration of cr and cd in the soil and barberry plants in farms surrounding the qayen cement company, south khorasan province, iran. materials and methods: in...

Journal: :Environmental science & technology 2016
Thomas Hills Duncan Leeson Nicholas Florin Paul Fennell

Several different carbon-capture technologies have been proposed for use in the cement industry. This paper reviews their attributes, the progress that has been made toward their commercialization, and the major challenges facing their retrofitting to existing cement plants. A technology readiness level (TRL) scale for carbon capture in the cement industry is developed. For application at cemen...

2008
Maryam Fallahpour Alireza Fatehi Babak N. Araabi Morteza Azizi

In this paper, we design a neurofuzzy controller to control several variables of a rotary cement kilns. The variables are back-end temperature, pre-heater temperature, oxygen content and CO2 gas content of the kiln. The fuzzy control system, as an advanced control option for the kilns, is intended to minimize the operator interaction in the control process. The proposed fuzzy controller uses a ...

Journal: :journal of advances in environmental health research 0
gholamreza goudarzi environmental technologies research center (etrc), ahvaz jundishapur university of medical sciences, ahvaz, iran rajab rashidi department of occupational health engineering, school of health, lorestan university of medical sciences, khorramabad, iran mohammad javad mohammadi abadan school of medical sciences, abadan, iran shahram sadeghi environmental health research center, kurdistan university of medical sciences, sanandaj, iran mehdi amidnia health center of andimeshk, ahvaz jundishapur university of medical sciences, ahvaz, iran yusef omidi khaniabadi health care system of karoon, ahvaz jundishapur university of medical sciences, ahvaz, iran

the objective of this study was to simulate carbon monoxide (co) dispersion exited from the stacks of a cement industry in doroud, iran by gaussian model (gm). four sampling period was conducted for the measurement of co from the factory's three-stack flow during a period of one year. the input parameters were the rate of co emission, meteorological data,  factors related to the stack, and...

2017
Lukáš Klus Vojtěch Václavík Tomáš Dvorský Jakub Svoboda Radek Papesch

This article presents the results of a study dealing with the utilization of sludge water from a concrete plant as a partial replacement for mixing water in the production of cement composites. The replacement of mixing water with sludge water from a concrete plant was carried out in the amounts of 20% and 50%. The following tests were carried out in order to determine the effect of the replace...

F Nadri , M Ahmadian , MR Ghotbi Ravandi, N Khanjani ,

  Background: The sound is an environmental and occupational pollutant and can cause a number of reactions in human body, in which hearing loss is one of the most important effects. Cement industry is one of the industries with noise induced hazards. The aim of this study was to evaluate the noise level in different parts of Kerman Cement Plant.   Materials and Methods: This descri...

2012
ATUL SNEHA

This paper presents a cement plant simulator designed on LabVIEW platform. It generates process data and electrical parameters for all the lines of workshops in the cement industry. The simulated design is universal and applicable to all kinds of cement plants. Client-server architecture is established and the generated parameters are communicated to Matrikon OPC client. Single Line Diagram of ...

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