PDF | On Dec 1, 2022, Jing Vivian Zhan published ZHU, Qian. 2022. River-sand Mining: An Ethnography of Resource Conflict in China. Leiden: Brill. | Find, read and cite all the research you need on ...

Article. Open access. Published: 24 September 2023. Uncovering the lack of awareness of sand mining impacts on riverbank erosion among Mekong Delta …

Yusuf, now studying sand mining and river systems as a Ph.D. candidate at Newcastle University in England, was born in Makueni County, southeast of Nairobi. As a , she carried water from the ...

WorldAtlas Nov 13, 2018 Sand mining is the process of extracting sand from an open pit, sea beaches, rivers and ocean beds, river banks, deltas, or inland dunes The extracted sand can be used for various types of manufacturing, such as concrete used in the construction of buildings and other river sand mining,Eqypt [ 49 7681 Ratings ] The …

Sand mining from rivers and marine ecosystems " can lead to erosion, salination of aquifers, loss of protection against storm surges and impacts on biodiversity, which pose a threat to livelihoods through, among other things, water supply, food production, fisheries, or to the tourism industry," says UNEP. In 2018, the World Wildlife …

Ancient Near East and Egypt: Human Rights and Humanitarian Law: Musicology: Art History: International Law: Philosophy: Asian Studies: International Relations: Religious Studies: ... Chapter 3 The Commodity Chain of River Sand and the Ecological Consequences of River-Sand Mining.

Assuming that in one year, the Saddang River sand mining operations last for 350 days, the annual production volume can be estimated at 890736 m³/year.

According to WWF report (see figure above), India may be using about 1.5 tonnes sand per capita per annum in 2010, up from about 0.8 tonnes per capita per annum ten years earlier. By that growth rate, we would be using around 2.5 tonnes per capita per annum in 2020.

Contents. PDF / ePub. More. Abstract. Sand is mined illegally in numerous countries globally—with devastating consequences for the environment and the people …

The Qena Bend is one of the protruding geomorphological features in the course of the Egyptian River Nile in Upper Egypt. There, the Nile changes its predominant trend (NW–SE) and makes a great loop towards the east, while is bounded by limestone cliffs on both sides (Fig. 1).This segment is considered one of the most structurally …

Wang, Z.; Ding, J.Y.; Yang, G.S. Risk analysis of slope instability of levees under river sand mining conditions. Water Sci. Eng. 2012, 5, 340–349. [Google Scholar] Queensland Government (QGOV). Impacts of Erosion. …

From Table 2, it can be seen that the bulk density of river sands ranges from 1.6 to 1.8 g/cm 3.This makes it possible to formulate current concretes whose density is close to 2.4 g/cm 3.. 3.2.3. Absolute Densit. In general, studies have shown that the absolute density of river sands ranges from 2.51 to 2.65 g/cm 3, with an average around 2.55 - 2.65 g/cm 3.

They are: (1) to determine the optimal amount of SM in respect to resilience state of stream hydraulics, morphological and river ecosystem variables, (2) to …

River sand is utilized in road construction projects for the preparation of sub-base and base layers. Its excellent compaction properties make it an ideal material for supporting the load-bearing capacity of roads. 4. Landscaping and Gardening. River sand is widely employed in landscaping and gardening applications.

sand is used for plastering. Different river sands thus have different levels of demand, and river-specific sand mining impacts need to be evaluated accordingly. S.N o. Sediment Name Size Range in mm Loose Sediment Type Cohesion Fine-Grained 1. Clay <1/256 mm or <0.004 Clay Cohesive 2. Silt 1/256 - 1/16 mm or 0.062-0.004 Silt Cohesive …

General guidelines for Mining gravel and sand from river in Malaysia. Following steps are taken as per guidelines: 1. Initially location of sand and gravel deposition or aggradation is identified. Mine operator is permitted to extract material where problem of aggradation is least.

Convincing arguments for Old Kingdom copper mining were found in Buhen south of Wadi Halfa at the western bank of the river Nile, where copper furnaces of the fourth and fifth dynasty were excavated (Emery 1963).But the nearest copper mine in that region is Um Fahm some 80 km south and 30 km inside the eastern Desert (Figs. 2 and 3).In Quban, …

The sand in a river's bed preserves its environmental equilibrium (Farahani and Bayazidi, 2017). Excessive river-sand mining for use as fine aggregate in concrete …

River sand mining. River sand mining is the extraction of sand (and gravel) from the drainage network of a river. By its nature, this practice effects the …

More than half of the annual global concrete materials were produced in China due to the rapid developing construction industry, which partly led to the shortage of river sand. However, mining rate exceeds the natural replenishment rate of river sand recently, resulting in depletion of natural river sand accumulation. The increasing …

Evaluation and mineral processing activities were focused on the black sand deposits of the northern Nile River delta as a non-conventional resource for uranium and thorium, as well as uranium deposits in Sinai and ... (2019) Radiological assessment of gamma and radon dose rates at former uranium mining tunnels in Egypt. Environ Earth …

Vietnam is a prime example of a little-known global threat: the mining of river sand to build the world's booming cities. In An Giang Province, Vietnam, a half-mile stretch of riverfront along ...

Ultimately we had to travel along the rivers to find sand worker settlements. We describe their livelihoods, and compare these to the random sample from the surrounding villages, and find that river sand mining is as well paid as other low-skilled activities, but provides a more regular income. 2. River sand mining.

The Hidden Environmental Toll of Mining the World's Sand. By far the largest mining endeavor globally is digging up sand, mainly for the concrete that goes into buildings. But this little-noticed and largely unregulated activity has serious costs — damaging rivers, wreaking havoc on coastal ecosystems, and even wiping away entire …

Sand, an important input to the construction industry, is extensively mined from the environment leading to depletion of the resource as well as damage to riparian habitat and the alteration of river beds and banks. Sand mining in South Africa is controlled by a complex regulatory system that can be distilled into three main themes: mineral …

This calls for responsible river sand mining practices and more importantly exploration of alternative sand manufacturing methods for source sustainability considering that over 40 billion tons of river sand and gravel is extracted worldwide annually. While critically examining the sand mining process and procedure vis-a-vis management ...

3.4 Manual and Mechanical Mining River sand mining is carried out both manually and mechanically. Manual mining is more environment-friendly and the quantity of mining is practically low. This method is practiced in many developing and underdeveloped countries having small rivers with limited river bed resources (Plate 3.2). Usually country ...

Illegal mining and depletion of natural sand caused execution of new environmental or land use legislations. Subsequently, obtaining river sand became challenging and costly. Also, occurrence of silt and clay in river sand which damages structures further amplified the demand for M-Sand because it has low risk of impurities.

Sand mining (used here as a generic term that includes mining of any riverine aggregates regardless of particle size) is a global activity that is receiving increasing media attention due to...