Humic acid (HA) is a complex organic compound made up of small molecules. A variety of
raw materials are used to manufacture HA, due to which the structure and composition of HA …

We present a process utilizing an ultrasonic horn-type reactor for the conversion of lignite-
coal into humic and fulvic acid analogs, achieving a 72% yield of humic acid analogs and …

Humans are dependent upon soil which supplies food, fuel, chemicals, medicine,
sequesters pollutants, purifies and conveys water, and supports the built environment. In …

The vast metabolic potential of microbes in brown coal (lignite) processing and utilization
can greatly contribute to innovative approaches to sustainable production of high-value …

The economy of the Great lakes region (GLR) depends on livestock and agricultural
production. Although the region boasts massive diverse natural resources, such as humic …

Dumping of spent fabric material has created extra solid wastes for the landfill. Noting this,
the present work converted spent fabric material into a new adsorbent for humic acid (HA) …

The purpose of the study is to examine the main methods of obtaining fertilizers and
optimizing processes. Using methods of analysis, comparison, and experimentation, three …

Based on the common step of alkaline extraction-acid precipitation, lignite treatment
techniques have been developed to improve extraction efficiency and yield of humic acid …

这是一篇矿物加工工程领域的论文. 腐植酸是昭通褐煤的重要组成部分, 为了高效地提取腐植酸,
采用正浮选, 反浮选工艺探索了昭通褐煤的较优浮选条件, 并分别利用氧解法 …

China is the world's biggest coal producer and is rich in coal resources. But lignite is one of
the coal resources with a lower utilization rate and added value. How to improve its …