文章摘要
崔松林,丁建华,武雨欣.影响鱼池水与泥体系硫酸盐还原因素的实验研究[J].水产学报,1991,15(3):185~192
影响鱼池水与泥体系硫酸盐还原因素的实验研究
FACTORS OF SULFATE REDUCTION IN WATER AND SLUDGE SYSTEM OF FISH PONDS
投稿时间:1990-12-01  修订日期:1991-01-01
DOI:
中文关键词: 鱼池  硫酸盐还原  底泥  土壤  硫化物
英文关键词: fish pond  sulfate reduction  suldge in the bottom  soil  sulfide
基金项目:
作者单位
崔松林 山西省水产科学研究所 太原 030006 
丁建华 山西省水产科学研究所 太原 030006 
武雨欣 山西省水产科学研究所 太原 030006 
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中文摘要:
      本文对水与泥体系硫酸盐还原进行了实验研究,结果表明:在一定条件下水体中硫化物含量与硫酸盐含量成正比;水体中硫化物主要是底泥硫酸盐还原的逸出产物,水体自身硫酸盐还原微弱;水体中硫化物积累的最适宜pH值在7.5~8.5;在4℃时硫酸盐还原几乎不能进行,水体中硫化物在20℃以下积累较慢,30℃以上积累迅速;易分解有机物能促进硫酸盐还原,其中淀粉的作用比蔗糖更明显,但腐殖酸抑制硫酸盐还原;在1×10-4N时氧化剂抑制硫酸盐还原的顺序是:C3O3N3Cl2Na>KMnO4>FeCl3>KNO3,在1×10-3N以上时为:FeCl3>C3O3N3Cl2Na>KMnO4>KNO3;硫酸盐还原是生物还原。
英文摘要:
      In north-western China there are vast area of alkaline soils. The fish ponds of sulfate alkaline type always produce sulfide poison which brings serious damage to fish farming. The sulfate reductions in water and sludge system are experimentally studied. Results are as follows: under certain conditions, the sulfide contents in water are in positive proportion to the sulfate contents; the sulfides in water are mainly the escaping products of the sulfate reduction in pond sludge, the sulfides easily accumulated at pH=7.5—8.5; the sulfate reductions almost not occure at the temperature of 4℃,the sulfides accumulates slowly under temperature 20℃ but fast over 30℃; the easily decomposing organisms speed up the sulfate reductions,in which the action of starches are stronger than sugar but humic acids inhibit it; in 1×10-4N,the order which oxidants inhibit the sulfate reduction is, C3O3N3Cl2Na>KMnO4>FeCl3>KNO3, in 1×1O-3N,FeCl3>C3O3N3Cl2Na>KMnO4>KNO3; the sulfate reduction is biological reduction.
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