| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method for modifying bottom sediment containing much sulfide and nitrogen in a field of modifying costal sea area environment using slag, especially using steelmaking slag, without generating ammonia odor so as to prevent malodor from sludge, such as hydrogen sulfide odor, and elution of the sulfide stably over a long period of time. <P>SOLUTION: The steelmaking slag is put into the sediment containing sulfide and mixed to become a mixture of the sediment and the steelmaking slag. The mixture is in a range of at least 20 cm deep from the surface of the sludge and has a pH value of 8.3 to 9.3. <P>COPYRIGHT: (C)2013,JPO&INPIT |
