Results 1 to 10 of about 4,269 (205)

Struvite Precipitation for Ammonia Nitrogen Removal in 7-Aminocephalosporanic Acid Wastewater

open access: yesMolecules, 2012
7-Aminocephalosporanic acid wastewater usually contains high concentrations of ammonium (NH4+-N), which is known to inhibit nitrification during biological treatment processes.
Erhong Duan   +7 more
doaj   +3 more sources

Acid Precipitation: Strong and Weak Acids [PDF]

open access: yesScience, 1976
Doubt is cast on the accuracy of the results reported by Frohliger and Kane concerning the acid character of rain. They do not believe that the pH of rainfall was ever controlled by the solubility of CO/sub 2/ in the precipitation and discredit the assumption that strong acids account for the presently observed pH value.
G E, Likens   +3 more
  +14 more sources

Cricket Protein Isolate Extraction: Effect of Ammonium Sulfate on Physicochemical and Functional Properties of Proteins

open access: yesFoods, 2023
Crickets are known to be a promising alternative protein source. However, a negative consumer bias and an off-flavor have become obstacles to the use of these insects in the food industry.
Edward   +6 more
doaj   +1 more source

Binderless, All-Lignin Briquette from Black Liquor Waste: Isolation, Purification, and Characterization

open access: yesMolecules, 2021
Lignin isolated from black liquor waste was studied in this research to be utilized as binderless, all-lignin briquette, with a calorific value in the range of 5670–5876 kcal/kg.
Yati Mardiyati   +5 more
doaj   +1 more source

Microscopically analyzed interface behavior characteristics of acid precipitation on asphalt surface

open access: yesWater Science and Technology, 2021
It is generally believed that the interaction between acid precipitation and asphalt has an effect on the performance of drainage asphalt pavement, but studies on the interface behavior characteristics from microscopic analysis are rare.
Tengjiang Yu   +4 more
doaj   +1 more source

Preparation of Fucoidan from Laminaria japonica by Ethanol-free Extraction Process

open access: yesShipin gongye ke-ji, 2022
In this study, based on the traditional hot water extraction-ethanol precipitation method for fucoidan, the ethanol-free extraction process of kelp fucoidan was studied in accordance with the difference in the fucose contents and sulfate groups of ...
Yanhong CHEN   +8 more
doaj   +1 more source

Acid Precipitation and the Prevalence of Parkinson’s Disease: An Ecologic Study in U.S. States

open access: yesBrain Sciences, 2021
Although the etiology of Parkinson’s disease (PD) is unknown, potentially informative clues lie in its geographic distribution. PD prevalence rates within the U.S.
Gary G. Schwartz, Mark R. Williamson
doaj   +1 more source

ISOLATION OF A GLYCININ-RICH PROTEIN FROM DEFATTED SOYBEAN [PDF]

open access: yesJournal of Food and Dairy Sciences, 2007
Defatted soybean flour was subjected to isolation procedures as follows: NaOH extraction / acid precipitation, water extraction / acid precipitation, NaOH extraction / cryoprecipitation and citric acid extraction / cryoprecipitation.
S. Abusalloum, S. Hasan, R. Abdolgader
doaj   +1 more source

Separation of Cobalt, Samarium, Iron, and Copper in the Leaching Solution of Scrap Magnets

open access: yesMetals, 2022
With the growing awareness of protecting the urban environment and the increasing demand for strategic materials, recycling of SmCo magnets has become imperative.
Jian-Zhi Wang   +3 more
doaj   +1 more source

The precipitation chemistry and acidity over China during 2018 [PDF]

open access: yesE3S Web of Conferences, 2019
This paper reports the acid rain observation data from 376 Acid Rain Monitoring stations and the precipitation chemistry data from 5 Global Atmosphere Watch stations of China Meteorological Administration(CMA) during 2018.
Jia Xiaofang, Tang Jie, Zhang Yong
doaj   +1 more source

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