生物脱硫综述

煤炭生物脱硫的研究现状及前景摘要日益严格的环保要求，使低耗高效、环保的洁净煤技术研究也更迫切，而煤炭生物脱硫技术利用嗜硫微生物脱除煤炭中硫，极具环保经济意义，是目前和将来煤炭脱硫的研究重点。本文分析了

煤炭生物脱硫的研究现状及前景 摘要 日益严格的环保要求，使低耗高效、环保的洁净煤技术研究也更迫切，而煤 炭生物脱硫技术利用嗜硫微生物脱除煤炭中硫，极具环保经济意义，是目前和将来 煤炭脱硫的研究重点。本文分析了煤炭生物脱硫技术的发展背景及研究进展。同时 介绍了煤炭微生物脱硫技术的种类，即生物浸出脱硫、表面处理浮选法、微生物选 择性絮凝法，从而将煤中的可燃硫转变为不可燃硫，进而减少二氧化硫的排放。概 述了微生物脱硫技术的特点、机理、方法、脱硫菌种、主要影响因素及现存问题， 最后根据煤炭生物脱硫的研究现状对其做了前景展望。 关键词：生物脱硫，脱硫机理，无机硫，有机硫 The present research situation and prospects of biodesulfurization of coal Abstract The increasingly tougher requirement of environment has made the clean coal technology research which is low consume efficient and environmentally friendly more urgent. And the biodesulfurization technology of coal using thiophilic bacteria to remove sulfur in coal is of most environmental economic significance.It has been the concentration of coal desulfurization current and in the future. This paper analyzes the background and the development of the biological desulfurization technology of coal and introduce the variety at the same time.The technology includes biology leaching desulfurization, surface treatment flotation method, and microbial selective flocculation. In those ways the flammable sulfur in coal can turn to be nonflammable,