Coal gangue organic fertilizer production line

Facultative-anaerobic microbial digestion of coal Springer

20201122  Coal preparation solid waste, which is a major environmental issue for coal-producing areas in China, may be microbiologically digested and transformed into a

Comprehensive utilization and environmental risks of coal gangue: A

2019121  In China, the production of coal gangue has accumulated more than 5 billion tons and is still rising at an annual rate of 300–350 million tons. The total gangue

Sustainable and clean utilization of coal gangue: activation

2022512  Using coal gangue as a fertilizer has been proven helpful in potentially reducing its environmental impact and improving its value. In this study, the formation

Low-carbon utilization of coal gangue under the carbon

2023525  Coal gangue, produced during coal mining and processing [ 1, 2 ], is one of the most extensively produced solid wastes in China [ 1, 3 ], accounting for

Environmental-friendly coal gangue-biochar composites

202131  This study shows that the coal gangue modified biochar composite can not only be used to remove phosphate from wastewater, but also be used as a slow-release

The Relationship between Acid Production and the Microbial

20231025  Coal gangue is a solid waste formed during coal production, and the acid mine drainage it generates during open-pit storage severely pollutes the ecological

Review of Coal Gangue Characteristics and Ecological

202151  In this , the physical, chemical and pollution characteristics of coal gangue are summarized, and the ecological restoration mode is divided into two modes:

Optimizing the formulation of coal gangue planting

2020115  Coal gangue can improve soil nutrient conditions. • The optimal proportion of coal gangue planting substrate is comparable to soil. • Coal gangue can be reused as

Characterization studies on coal gangue for sustainable

202025  The presence of silica and alumina along with the traces of clay minerals and residual coal fractions has led to the utilization of coal gangue in various applications

Biodegradation of organic compounds in the coal gangue by

202313  Coal gangue (CG), a solid waste generated during coal mining and washing, accounts for about 10–15% of the total coal production (Li and Wang 2019).The amount of CG accumulating due to coal mining activities is rapidly increasing, making it one of the most significant industrial residues (Yang et al. 2012; Gao et al. 2015; Yi et al. 2018).There are

Influence of coal gangue mulching with various thicknesses

2021728  Coal gangue, as a type of solid waste discharged during coal mining and coal washing, occupies a large amount of land resources owing to accumulated gangue, which eventually results in ecological

Sustainable and clean utilization of coal gangue: activation

2022512  Coal gangue, a by-product produced during the coal processing, has a serious impact on the environment. Using coal gangue as a fertilizer has been proven helpful in potentially reducing its environmental impact and improving its value. In this study, the formation mechanism and influencing factors of coal-gangue-based silicon fertilizer was

Minerals Free Full-Text Adsorption and Desorption of Coal Gangue

2022624  The chemical reaction between calcium ions (Ca2+) and phosphate in the soil is the main way to maintain the availability of soil phosphorus. Thus, we believe stimulating coal gangue with Ca2+ solution would be an effective way to improve its adsorption and desorption capacity toward phosphate. In order to explore the effects of

Environmental-friendly coal gangue-biochar composites

202131  How to use coal gangue, a common industrial waste, to benefit the environment and agriculture? This stone presents a novel method of producing coal gangue-biochar composites that can remove phosphate from water and act as a slow-release fertilizer for crops. The stone also analyzes the physicochemical properties and

2014218  : : ,,,、pH、、、、,

Effect of Darcy flux on the release of dissolved organic

202075  Section snip Study area. The Baode coal mine is located in Qiaotou Town, Baode County, Shanxi Province, China. This coal mine was established in 2002 and has a mining area of 55.9 km 2 ranging from 38°54′50″ N, 111°04′20″ E to 39°01′49″ N, 110°08′30″ E. With 49.3 years as the remaining service life, the approved coal production

Review of Coal Gangue Characteristics and Ecological

202151  Coal gangue has become one of the industrial wastes with the largest annual discharge and accumulated stock in China. The disorderly accumulation of coal gangue not only occupies a large amount of land resources and causes natural disasters, but also pollutes the surrounding ecological environment, which in turn affects human

Spatial distribution characteristics and risk assessment of

2023318  The pollution of heavy metals in soil caused by exposed coal gangue and its prevention and control has become a hot issue restricting the green mining of coal in China. Nemerow integrated pollution index (NIPI), potential ecological risk index (RI) and human health risk assessment model were used to evaluate the pollution and risk of

Sludge amendment accelerating reclamation process of reconstructed

202123  Coal gangue and fly ash hardly contained water, and the water content of sludge was 60%. X. H. et al. Effect of long-term application of inorganic fertilizer and organic amendments on soil

Using Chinese Coal Gangue as an Ecological Aggregate and

2022626  Abstract. Coal gangue is a kind of industrial solid waste with serious ecological and environmental implications. Producing concrete with coal gangue aggregate is one of the green sustainable development requirements. This stone reviews the properties and preparation methods of Chinese gangue aggregate, studies the influence

Combining hydrochemistry and 13C analysis to reveal the

2023812  East China is a highly aggregated coal–grain composite area where coal mining and agricultural production activities are both ishing. At present, the geochemical characteristics of dissolved inorganic carbon (DIC) in groundwater in coal mining areas are still unclear. This study combined hydrochemical and carbon isotope methods to explore

Characterization studies on coal gangue for sustainable

202025  Global rise in greenhouse gas emissions (GHG) is triggered mainly due to the consumption of fossil fuels for power generation and domestic usage. Among the fossil fuels, coal is a primary contributor to global GHG with substantial emissions generated during its mining and combustion process. Coal gangue, a residue produced during the

Land Free Full-Text Evaluation of Soil Quality and Maize

20211127  Reclaiming subsidence and waterlogged zones caused by coal mining to maintain and feed supplies is an urgent issue in China. Utilizing coal gangue (CG) as a filling matrix to construct different profiles of reclaimed land in coal mining subsidence has downsides, e.g., due to its low conservative capability of water-fertilizer and crop yield, its

Remediation of arsenic-contaminated paddy soil by iron

2022115  Thus, the synthesis of FeOOH-modified coal gangue by FeSO 4 solution may be better than using FeCl 3 solution. However, the synthesis of FeOOH-modified coal gangue by FeSO 4 solution is yet to be tested. Therefore, iron oxyhydroxide and iron oxyhydroxide sulfate-modified coal gangue (CG-FeOH and CG-FeOS) composites were

Biology Free Full-Text Biotechnology of Microorganisms from Coal

202292  It was generally believed that coal sources are not favorable as live-in habitats for microorganisms due to their recalcitrant chemical nature and negligible decomposition. However, accumulating evidence has revealed the presence of diverse microbial groups in coal environments and their significant metabolic role in coal

Application of Coal Gangue as a Coarse Aggregate in Green

20211111  Along with the excavation and washing of coal in the production process, large amounts of rock-like coal gangue (CG) accompanying the carboniferous beds are discharged as industrial residues, accounting for around 10–20% of the coal production [2,3,4].In the largest coal production country, namely China, more than 700 million tons

Effects of solid waste-based soil conditioner and arbuscular

202271  1. Introduction. Coal is one of the main energy sources in China (BP, 2020), especially shanxi province.While coal resource mining drives the economic development of the country, it brings serious problems to the environment (Ribeiro et al., 2016).Coal gangue, a byproduct of coal mining, accounts for approximately 10%–15% of the total coal

Using Chinese Coal Gangue as an Ecological Aggregate and

2022626  Coal gangue is a kind of industrial solid waste with serious ecological and environmental implications. Producing concrete with coal gangue aggregate is one of the green sustainable development requirements. This stone reviews the properties and preparation methods of Chinese gangue aggregate, studies the influence of gangue

Bagasse organic fertilizer and producing method thereof

2006627  The invention discloses an organic fertilizer of bagasse and manufacturing method, which comprises the following parts: 45-50% bagasse, 30-35% fecal, 5-10% ripe soyabean and 2-5% corn gel. The manufacturing method comprises the following steps: stirring the bagasse and fecal; fermenting until the bagasse is dote; grinding the dote