weathered coal

Biodegradation of Hegang weathered coal by microorganisms

鹤岗风化煤的微生物降解研究

Treatment of the waste water from zinc-plating plant and various zinc chloride waste water containing Zn~ ( 2+) and Cd~ ( 2+) by granular decontaminant made from weathered coal is performed both in the laboratory and pilot plant.

对镀锌废水和含Zn~（2+）和Cd~（2+）的氯化锌废水的处理进行了小试和中试研究。

Study on Mechanism of interaction between weathered coal based humic acid and ca ( h_2po_4)_2

风化煤腐植酸与Ca（H2PO4）2相互作用机理的研究

The change of soil physicochemical properties was obvious with the time variation of weathered coal applying.

3风化煤施用对土壤理化性质的影响随风化煤施用时间的变化而显著变化。

For the third kind which is from weathered coal before high-temp. exothermal effect there is also one smallish mid-temp. exothermal effect, average is 2.0~ 2.3 Kcal/ g.

第三类是风化煤HA，它在高温放热效应前有一组较小的中温放热效应，其平均反应热为2.0～2.3千卡/克。

STUDY ON THE STRUCTURE OF FULVIC ACID FROM WEATHERED COAL OF TULUFAN.

吐鲁番风化煤黄腐酸的结构研究.