This study assessed the effects of superphosphate (SPP) and phosphogypsum (PPG) on the bacterial and fungal community succession and molecular ecological networks during composting. Adding SPP and PPG had positive effects on the bacterial richness and diversity, negative effects on the fungal richne …
Phosphogypsum and superphosphate were applied with the same amount of phosphorus (5% of the initial total nitrogen, molar basis) or weight (10% of initial dry matter) and compared to a control treatment without additives. Results show that phosphorous additives could effectively conserve nitrogen. Adding phosphogypsum could significantly reduce ...
Effects of phosphogypsum and superphosphate on compost maturity and gaseous emissions during kitchen waste composting. Waste Manag., 36 (2015), pp. 70-76. View PDF View article View in Scopus Google Scholar. Yang et al., 2016. Z. Yang, A. Kappler, J. Jiang.
Phosphogypsum and superphosphate were applied with the same amount of phosphorus (5% of the initial total nitrogen, molar basis) or weight (10% of initial dry matter) and compared to a control ...
Phosphogypsum is a waste by-product from the processing of phosphate rock in plants producing phosphoric acid and phosphate fertilizers, such as superphosphate. The wet chemical phosphoric acid treatment process, or 'wet process', in which phosphate ore is digested with sulfuric acid, is widely used to produce phosphoric acid and calcium ...
Phosphogypsum (PG) is a solid waste produced by sulfuric acid decomposing phosphate rock to produce phosphoric acid. The main component is calcium sulfate and …
Lei, L. et al. Microbial succession and molecular ecological networks response to the addition of superphosphate and phosphogypsum during swine manure composting. J. Environ. Manage. 279, 111560 ...
DOI: 10.1016/j.biortech.2018.09.023 Corpus ID: 52879266; Effects of phosphogypsum, superphosphate, and dicyandiamide on gaseous emission and compost quality during sewage sludge composting.
This study investigated the effects of phosphogypsum, superphosphate, and dicyandiamide on gaseous emission and compost quality during sewage sludge composting. Results showed that phosphogypsum reduced ammonia (NH 3) and methane (CH 4) …
A measurement of the radioactivity content of phosphate ore material, phosphatic fertilizer (superphosphate), and by-product phosphogypsum in the Abu-Zaabal phosphate plant, Egypt, has been carried out.
Furthermore, the combination of dicyandiamide with phosphogypsum or superphosphate has been found to enhance the mitigation of total greenhouse gas emissions by 29.5%–37.5% (F. Yang et al., 2022). Phosphorus slag (PS), the remaining by-product of phosphate ore extraction and processing, is underused as a resource ( Yong et al., 2022 ).
This study investigated the effects of phosphogypsum, superphosphate, and dicyandiamide on gaseous emission and compost quality during sewage sludge composting. Results showed that phosphogypsum reduced ammonia (NH3) and methane (CH4) emissions but increased nitrous oxide (N …
Previous studies revealed that superphosphate fertilizer (SSP) as an additive in compost can reduce the nitrogen loss and improve the effectiveness of phosphorus during composting. However, few studies have explored the influence of adding SSP with high levels on ammonia and greenhouse gas emission and the suitable amount for SSP addition …
OF USING PHOSPHOGYPSUM AS SOIL CONDITIONER: A CASE STUDY OF BRAZIL Barbara Mazzilli, Catia Saueia, Marcelo Nisti NORM IX - Denver 2019 ... Phosphoric acid is the starting material for the most utilized fertilizers: triple superphosphate (TSP), single superphosphate (SSP), monoammonium phosphate (MAP) and diammonium phosphate (DAP).
Highlights: • Effect of phosphogypsum and superphosphate on composting gas emissions was studied. • The reduction mechanisms of composting gas were clarified in this …
This study investigated the effects of phosphogypsum and superphosphate on the maturity and gaseous emissions of composting kitchen waste. Two amended compost treatments were conducted using phosphogypsum and superphosphate as additives with the addition of 10% of initial raw materials (dry weight). A control treatment was also studied. The treatments were …
It has been demonstrated that introducing chemical additives, e.g. dicyandiamide (DCD), phosphogypsum (PPG) and superphosphate (SSP) is an effective approach for …
David Chadwick's 4 research works with 335 citations and 280 reads, including: Effects of phosphogypsum, superphosphate, and dicyandiamide on gaseous emission and compost quality during sewage ...
Results show that phosphorous additives could effectively conserve nitrogen and improve compost quality by introducing additional nutrients into the compost with the addition …
Phosphogypsum, a waste product from manufacturing fertilizer, emits radon, a radioactive gas. It also contains the radioactive elements uranium, thorium and radium. Phosphate rock mining is the fifth largest mining industry in the United States in terms of the amount of material mined. The phosphate industry is concentrated in the southeastern ...
With the purpose of evaluating the effectiveness of phosphogypsum and simple superphosphate in controlling ammonia losses by volatilization during the process of manure composting, an experiment ...
This study investigated the effects of dicyandiamide, phosphogypsum and superphosphate on greenhouse gas emissions and compost maturity during pig manure composting. The results indicated that the addition of dicyandiamide and phosphorus additives had no negative effect on organic matter degradation, and could improve the compost maturity. ...
The radioactivity of the Minjingu phosphorite deposit in Arusha-Tanzania was determined by radiochemical and radiometric methods of analysis. The main radioisotopes analysed in the rock phosphate, phosphate concentrate (ground rock phosphate), phosphate fertilizers (superphosphate, and triple superphosphate) and phosphogypsum were 238 U, …
Many studies reported that different kinds of phosphate amendments, such as, superphosphate (SSP), calcium magnesium phosphate (facilitating struvite crystallization), phosphate rock, phosphogypsum, etc., could effectively reduce nitrogen loss, increase phosphorus content, and improve the quality of compost product derived from livestock and ...
Phosphogypsum and superphosphate were applied with the same amount of phosphorus (5% of the initial total nitrogen, molar basis) or weight (10% of initial dry matter) and compared to a control ...
Therefore, acidic substances, including phosphogypsum, apple pomace, calcium superphosphate, citric acid, elemental sulfur, phosphoric acid and calcium superphosphate, have been used as pH regulators to control nitrogen loss (Jiang et al., 2014; Lim et al., 2017; Luo et al., 2013; Pan et al., 2018). The type and composition of acidic additives ...
Phosphate deposits are generally characterized by enhanced radionuclide concentrations compared to natural levels. The mining and processing of this phosphate ore redistribute radionuclides throughout the environment and introduce them into phosphoric acid and phosphogypsum. Phosphoric acid is the starting material for triple superphosphate …
Single superphosphate (SSP) was the first commercial mineral fertilizer, and it led to the development of the modern plant nutrient industry. ... (MCP, also called calcium dihydrogen phosphate) and gypsum, no problems arise with phosphogypsum byproduct disposal unlike the manufacture of other common P fertilizers. SSP is also known as ordinary ...
Adding phosphogypsum could significantly reduce NH 3 emission and total nitrogen loss, but increase N 2 O emission. Application of 10% superphosphate mitigated NH 3 …
Dicyandiamide combined with phosphogypsum or superphosphate could enhance mitigation of the total greenhouse gas (37.46% and 29.55%) and NH 3 emissions (18.28% and 21.48%). The combination of dicyandiamide and phosphogypsum exhibits the most pronounced emission reduction effect, simultaneously decreasing the NH 3, CH 4, and …
This study assessed the effects of superphosphate (SPP) and phosphogypsum (PPG) on the bacterial and fungal community succession and molecular ecological networks during composting. Adding SPP and PPG had positive effects on the bacterial richness and diversity, negative effects on the fungal richness and diversity.
Effects of phosphogypsum, superphosphate, and dicyandiamide on gaseous emission and compost quality during sewage sludge composting. scientific article published on 05 September 2018. Statements. instance of. scholarly article. 1 reference. stated in. Europe PubMed Central. PubMed publication ID.
This study investigated the effects of dicyandiamide, phosphogypsum and superphosphate on greenhouse gas emissions and compost maturity during pig manure composting. The results indicated that the addition of dicyandiamide and phosphorus additives had no negative effect on organic matter degradation, and could improve the compost maturity.