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·During the process of phosphoric acid production the potentially hazardous waste by product phosphogypsum hydrated calcium sulfate is produced at a quantity 5 times that of phosphoric acid 110 143
·Is phosphogypsum harmful to people The EPA says that phosphogypsum poses a cancer risk due to radon emissions Sinkholes have also caused sites where phosphogypsum called stacks to release millions of gallons of process wastewater and phosphogypsum into the Floridian aquifer according to the Center for Biological Diversity
·be harmful for Eating junk food is harmful for you be harmful to 。：chemicals that are harmful to the environment （《》） It is
·Climate impact eutrophication and phosphogypsum production are some of the main negative environmental dynamics that are becoming increasingly challenging in the coming decades in Van Vuuren et al 2010 the world population reaches billion people by 2050 which implies higher P requirements per capita in their scenario compared to
Phosphogypsum PG is one of the typical bulk industrial solid wastes generated in the phosphate chemical industry Due to its huge production volume and immature resource treatment technology a large amount of PG can only be stored and disposed in slag yards and its impact on the ecological environment is becoming increasingly significant during long term storage
WASHINGTON October 14 2020 — Today Environmental Protection Agency EPA Administrator Andrew Wheeler approved a request from The Fertilizer Institute TFI to allow phosphogypsum to be used in government road construction projects Allowing the reuse of phosphogypsum shows EPA s commitment to working with industry in a way that both reduces
· Phosphogypsum waste sits stacked in Florida and around the without any solution for its ultimate fate said Brooks Armstrong president of People for Protecting Peace River Piled 300 feet or more these huge stacks have had multiple failures releasing their highly toxic and radioactive liquids into our Floridan aquifer
·Phosphogypsum PG wastes including solid state PG and liquid state PG leachate are industrial byproducts generated during the production of phosphoric acid It is of great concern due to the large scale product accumulation and environmental and geological hazards Harmless treatment and green chemical resource utilization techniques emerge to be
·Is phosphogypsum harmful to people The EPA says that phosphogypsum poses a cancer risk due to radon emissions Sinkholes have also caused sites where phosphogypsum called stacks to release millions of gallons of process wastewater and phosphogypsum into the Floridian aquifer according to the Center for Biological Diversity
·Phosphogypsum PG the main industrial by product of phosphate fertilizer industry primarily consists of calcium sulfate dihydrate Rn 222 is an inert noble gas that is harmful to the environment because it is highly mobile and eventually decays to form two radioactive daughters with relatively long half lives
·Phosphogypsum PG a significant by product of the wet phosphoric acid production process poses environmental and utilization challenges due to its harmful impurities including heavy metals fluorides and phosphates Treatment Methods for Harmful Impurities in Phosphogypsum and Their Applications in Road Engineering A State of the Art
·Florida lawmakers are pushing a new bill that if signed off by Gov Ron DeSantis could pave the way for new roads across the state to be made with "radioactive" mining waste that critics say
·Phosphogypsum has been widely used in the reclamation of degraded acidic soils by reducing aluminium and manganese phytotoxicity and enhancing Ca availability Previous studies have shown that when applied superficially or incorporated phosphogypsum mitigates the harmful effects of soil acidity on plant growth McCray et al 1991
·Rashad Potential use of phosphogypsum in alkali activated fly ash under the effects of elevated temperatures and thermal shock cycles J Clean Prod 2015; 87 717 725 [Google Scholar] Reijnders L Cleaner phosphogypsum coal combustion ashes and waste incineration ashes for application in building materials a review Build Environ
·If something is harmful only to a member of a menu of items you would use "harmful for " Eg This Chinese laundry soap will clean just about any oils or grime out of your clothing It is not harmful for most colors It is harmful for cleaning dirt spots in your carpeting unless the spots are small in area
·Phosphogypsum PG is a hazardous industrial solid waste product from the wet phosphate industry 1 widespread deposition of that fine light to dark grey powder with a slight odor and
·Round 1 Reviewer 1 Report The topic of the phosphogypsum use of different genesis is very relevant today in different countries of the world This study is devoted to an important environmental issue because phosphogypsum contains a number of harmful impurities which can limit its use and requires additional treatment
·The phosphogypsum based cemented paste backfill PCPB in the mining goaf has been in the mine water environment for a long time and its rich toxic and harmful elements have the risk of migrating and diffusing to the surrounding rock polluting groundwater The occurrence environment of underground space in mines is complex and the filling body is
·Phosphogypsum has decreased SOD CAT and MDA activities in the gills digestive gland gonad and muscles according to the concentration indicating a defense against oxidative stress
·The production of by product phosphogypsum is very problematic In order to recycle the phosphogypsum into a building material its harmful acidic impurities especially the soluble phosphate
·Molecules 2022 27 462 2 of 16 water [9 11] capillary water and attached water Therefore solving the environmental pollution problem of PG is an urgent task [3 12 13]
·The main component of phosphogypsum is calcium sulfate dihydrate CaSO 4 2H 2 O The existence of bond water of phosphogypsum leads to multiple ways of resource utilization Gonfiantini and Fontes 1963; Palacio et al 2014; Cole and Lancucki 1972 CaSO 4 2H 2 O is an environmentally friendly saturated structure Phosphogypsum is a solid by
·Phosphogypsum PG CaSO4·2H2O is a waste product generated by the phosphate industry PG discharged into the sea watercourses or in wilderness stocks contains toxic elements harmful to
·EPA recently authorized the use of radioactive waste called phosphogypsum or PG in road construction By allowing PG in roads the public and environment will be exposed to radiation precariously atop the Floridan aquifer — which supplies drinking water for 10 million people Additionally gypstacks in Idaho North Carolina
