Query : "coal ash"

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Coal ash management would remain a great concern all over the world. Several studies proposed that there is an ample scope for safe utilization of coal ash as a soil ameliorant that may improve physical, chemical and biological properties of the soil and is a source of readily available plant micro and macro nutrient. With this concept a pot culture experiment was carried out in the eastern gh ...

SUBJECT: psidium guajava; proximate composition; ashes; application rates; nutrients

POSTED TO: Pakistan Journal of Agricultural Sciences (Pakistan) [0552-9034]

Background: For this research Dehydrated Food Waste (DFW), was supplied from Cecconi’s Restaurant, Union House from The University of Melbourne and from the City of Melbourne. The two first places are using the Closed Loop approach for dehydration food waste and the City of Melbourne use the EcoGuardians approach. By dehydration of food waste, is possible to reduce around 85% of weight and 90% ...

SUBJECT: compost; thermophilic composting; closed loop; ecoguardians; dehydrated food waste

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Background: For this research Dehydrated Food Waste (DFW), was supplied from Cecconi’s Restaurant, Union House from The University of Melbourne and from the City of Melbourne. The two first places are using the Closed Loop approach for dehydration food waste and the City of Melbourne use the EcoGuardians approach. By dehydration of food waste, is possible to reduce around 85% of weight and 90% ...

SUBJECT: compost; thermophilic composting; closed loop; ecoguardians; dehydrated food waste

FULL TEXT AVAILABLE

In situ reclamation of closed coal mine waste in Korea using coal ash

Kim, S.C., Chungnam National University, Daejeon et al. [jun2017]

Adding coal ash to acid waste decreases its acidity and supplies essential nutrients to plants. The effects of coal ash on acid coal mine waste and acid mine drainage were investigated in the field. Treatments were mixtures of coal mine waste with coal ash (0, 20, and 40%). Addition of coal ash increased the pH of coal mine waste and leachate by 3.11 and 3.03 units, respectively. After stabili ...

SUBJECT: coal mine waste; metales pesados; plant growth; heavy metals; coal ash

POSTED TO: Applied Biological Chemistry [2468-0834]

Studies on the fusibility of coal ash

Pugal, D.L. et al. [jan-mar1995]

A study, which aims to develop a technology for the preparation of a high quality adsorbent for SOx using coal ash to control air pollution caused by coal-fired thermal power plants in the Philippines, is currently being undertaken jointly by ITDI and HNIRI. During its first year of implementation, the physical, chemical and thermal characteristics of Philippine and Japanese coal ash samples w ...

SUBJECT: charbon; control de la contaminacion; composicion quimica; point de fusion; punto de fusion

POSTED TO: Philippine Technology Journal (Philippines) [0116-7294]

Industrial waste stocks in Kazakhstan significantly increase and only 10-15 % of total generated industrial waste is utilized. The coal ash and phosphogypsum usage as soil fertilizers is appropriate, however, there is a need for additional investigation of ecological risks related with this industrial waste utilization technology. The aim of this research is to investigate the effect of phosph ...

SUBJECT: trigo de primavera; letonia; innocuite des produits alimentaires; heavy metals; aplicacion de abonos

POSTED TO: proceedings of the international scientific conference [1691-5976]

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The effects of soil pollution with coal ash on the number and enzymatic activity of soil microorganisms were investigated. Soil samples were treated with three different rates of ash and two rates of nitrogen fertilization. Coal fly ash pollution resulted in increase of soil fungi and cellulolytic microorganisms and the simultaneous decrease of Azotobacter spp. Coal ash enhances the urease act ...

SUBJECT: pot experimentation; fosfatasa ácida; bacteria; rendement des cultures; suelo

POSTED TO: Roczniki Gleboznawcze (Poland) [0080-3642]

In the Philippines, the government has started to impose environmental regulations to keep its environment free from hazardous and toxic elements. Among the detrimental pollutants being looked into, the government is focusing its attention to the hazardous emissions from coal-fired thermal power plants, in particular, to the reduction of SO sub x emissions. ITDIA had developed a process for th ...

SUBJECT: politique de l'environnement; sustancias toxicas; charbon; dioxyde de soufre; substance toxique

POSTED TO: Philippine Engineering Journal (Philippines) [0117-5564]

The paper presents results of studies on the effect of coal ash upon cherry plum and black currant seedlings. It was found that coal ash effect was differentiated. The lowest dose (150 t/ha) stimulated the growth of cherry plum seedlings, while higher doses had an inhibiting effect. Similar effects were observed for black currant. An addition of birch bark did not decrease the negative effects ...

SUBJECT: pot experimentation; croissance; soil; plantule; metodos de ensayo

POSTED TO: Acta Academiae Agriculturae ac Technicae Olstenensis. Agricultura [0860-2832]

Coal ash samples from Batangas Coal-Fired Thermal Power Plant and limestone from a cement plant in Bulacan [Philippines] were used as raw materials for the preparation of highly active SO2 absorbent. The prepared SO2 absorbents were characterized to determine the effects of mineralogical composition, morphological structure and the type of coal ash used, on SO2 removal efficiency. The desulfur ...

SUBJECT: protection de l'environnement; sulphur; charbon; proteccion ambiental; ashes

POSTED TO: Philippine Engineering Journal (Philippines) [0117-5564]