Results 11 to 20 of about 16,763 (263)

Research Progress on Electro-Chemical Oxidation of Low-Rank Coal to Humic Acid

open access: yes南方能源建设, 2022
[Introduction] With the vigorous development of renewable energy, clean and efficient utilization of low-rank coal not only improves resource utilization and economic value but also has great social significance.
Ruzhan BAI   +6 more
doaj   +1 more source

Humic Acid Isolation from Batujai Dam Lombok Tengah-NTB and its Potential as Reductive–Biosorbent Au(III) in The Batch System

open access: yesJurnal Ilmu Dasar, 2020
The Study of Au(III) ions adsorption by humic acid in batch system has been done. Humic acid was isolated from Batujai Dam Lombok Tengah 0.1 M NaOH and continued with 0.1 M HCl/0.3 M HF washing to dissolve silica. Functional groups of isolated humic acid
Nurul Ismillayli, Dhony Hermanto
doaj   +1 more source

Effect of biofertilizers and humic acid on vegetative growth parameters in Sat Kara (Citrus macroptera) under soil media conditions [PDF]

open access: yesInternational Journal of Minor Fruits, Medicinal and Aromatic Plants
An investigation on effect of biofertilizers and humic acid on vegetative growth parameters in Citrus macroptera seedlings under soil media conditions was studied during the period 2022–2023.
Ramkishor Choudhary,
doaj   +1 more source

Impact of soil application with humic acid and foliar spray of milagro bio-stimulant on vegetative growth and mineral nutrient uptake of Nonpareil almond young trees under Nubaria conditions

open access: yesBulletin of the National Research Centre, 2020
Background At present, agricultural production management techniques focus on greater commitment to environmental sustainability. As such, this study was carried out during two successive seasons (2018 and 2019) to investigate the impact of two natural ...
Mahmoud Sami Abourayya   +5 more
doaj   +1 more source

Extraction yield of humic substances from organic materials

open access: yesDyna, 2022
At present there is a great advance in the use of organic substances as fertilizers; humic substances are one of them with various forms of extraction.
Irina Pedroso-Rodriguez   +5 more
doaj   +1 more source

Effect of humic acid on degradation of PTBP by strain Tas13 [PDF]

open access: yesE3S Web of Conferences, 2023
p-tert-Butylphenol (PTBP) is a kind of alkylphenol endocrine disruptor. PTBP is not only toxic to aquatic organisms and animals because of its high persistence in the environment, but also has acute toxicity, chronic toxicity, endocrine interference and ...
Zhang Hui
doaj   +1 more source

The role of humic acid in Fenton reaction for the removal of aliphatic fraction of total petroleum hydrocarbons (diesel range) in soil

open access: yesEnvironmental Science and Ecotechnology, 2021
This study investigated the role of humic acid in Fenton reaction for the total petroleum hydrocarbons (TPH) (diesel) in soil. Batch reactions were conducted at varying humic acid dosages and pH.
Seyedeh Pegah Jalilian Ahmadkalaei   +3 more
doaj   +1 more source

Study on Lignite Humic Acids(III)On the Nitro Humic Acids.

open access: yesJournal of the Fuel Society of Japan, 1955
亞炭フミン酸から諸種の條件によりニトロフミン酸の製造を行い, 各種條件で得られたニトロフミン酸の性質からフミン酸に対する硝酸の作用の概要を調べた。その結果フミン酸に対する硝酸の作用の最大のものは酸化反応であり, 加水分解反応もまた大きな作用であることを知つた。また酸化反応はフミン酸構成単位の脂肪族鎖を切断する方向に進行する。このことは稍々多量に製造したニトロフミン酸につきその示性式を求めることにより, さらに明白となつたまた。従来フミン酸と稍酸の反応で全く見落されていたシアン化水素並びにアンモニヤの生成を知り, その定量を行い, それらの生成がフミン酸のフェノール性に基くことを推定した。またフミン酸とジアゾメタンの反応によりO-メチル化以外に一部ジアゾメタンの附加が起ることを認め ...
Kozo Higuchi   +2 more
openaire   +3 more sources

Bazı Organik Besin Kaynaklarının Cin Mısırın (Zea mays L. everta) Tane Verimine Etkisi

open access: yesJournal of Agricultural Sciences, 2018
This study was carried out to determine effect of sixteen different organic nutrition sources to grain yield of popcorn (Zea mays L. everta) in Çermik district of Diyarbakır province of Turkey between 2010 and 2011 years.
Haktan Cihangir, Abdullah Öktem
doaj   +1 more source

Intercation Between Some Micro-Elements And Humic Substances in Some Forest Soils Northern Iraq

open access: yesTikrit Journal for Agricultural Sciences, 2022
Four pedons were selected for different soils in the forest cover, two in each of Mankeesh and Atrush areas in Dohuk governorate, under pine and oak trees, in order to study the distribution of the main groups of humic compounds (humic and fulvic acids ...
Qahtan D. Essa Al-Khafagi
doaj   +1 more source

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