| 引用本文: | 郝益婷,高峰,马欢欢,等.碳源对蚯蚓人工湿地净化养殖废水的影响[J].灌溉排水学报,0,():-. |
| Hao Yiting,Ga Feng,MaHuanhuan,et al.碳源对蚯蚓人工湿地净化养殖废水的影响[J].灌溉排水学报,0,():-. |
|
| 摘要: |
| 【目的】为资源化利用农业秸秆优化人工湿地净化水质提供理论依据。【方法】通过试验设置8组人工湿地，其基质分别为KW（细沙），JW（细沙+玉米秸秆粉），PW（细沙+工业葡萄糖），SW（细沙+玉米秸秆生物炭），KQ（细沙+赤子爱胜蚓），JQ（细沙+玉米秸秆粉+赤子爱胜蚓），PQ（细沙+工业葡萄糖+赤子爱胜蚓），SQ（细沙+玉米秸秆生物炭+赤子爱胜蚓），在进水浓度、水力条件和芦苇密度及生长状况相同的情况下，测定各组人工湿地出水水质，探讨了不同碳源与蚯蚓的联合作用对人工湿地净化水质效果的影响。【结果】加入碳源和赤子爱胜蚓对COD的去除率有一定的提高；添加赤子爱胜蚓会提高人工湿地的净化总磷的效果；根据8组人工湿地出水总磷去除率发现，在添加工业葡萄糖为碳源时与赤子爱胜蚓联合作用效果最优，去除率可达94.0％；加入赤子爱胜蚓和工业葡萄糖，或者加入赤子爱胜蚓和玉米秸秆粉，对总氮的去除率分别提高了6.3％和5.1％；在不同处理组中加入赤子爱胜蚓后，添加玉米秸秆粉处理组对铜（Cu）的去除率最高，处理水中检测不出铜的含量。【结论】在人工湿地中加入赤子爱胜蚓能够强化人工湿地对养殖废水的COD、总磷、重金属铜和锌（Zn）等的净化效果；人工湿地添加玉米秸秆生物炭作为碳源对氨氮去除率有明显提高；添加不同碳源与赤子爱胜蚓对人工湿地去除COD的效果均有适当提高。加入玉米秸秆粉与赤子爱胜蚓联合作用会显著提高人工湿地COD、总磷、总氮、氨氮、以及重金属铜和锌的去除率；人工湿地中在添加有玉米秸秆粉时，赤子爱胜蚓吸收重金属铜效果最佳。 |
| 关键词: 人工湿地；赤子爱胜蚓；碳源；养殖废水 |
| DOI： |
| 分类号:S271 |
| 基金项目:国家重点研发计划:再生水农田利用模式、风险管控与保障策略(2017YFC0403503) |
|
| Effects of carbon source on purification of aquaculture wastewater by earthworm constructed wetland |
|
Hao Yiting1, Ga Feng1, MaHuanhuan2, MaTian1, HuChao1, LiuChuncheng1, CuiErping1
|
|
1.Farmland Irrigation Research Institute,CAAS;2.HennanNormalUniversity
|
| Abstract: |
| 【 Objective 】To provide theoretical basis for water purification by using agricultural straw optimization constructed wetland. 【 Methods 】Eight groups of constructed wetlands were set up by experiment, and the substrates were KW (fine sand), JW (fine sand + corn straw meal), PW (fine sand + industrial glucose), SW (fine sand + corn straw biochar), KQ (fine sand + Corn straw meal + eisenia fetida), JQ (fine sand + corn straw meal + eisenia fetida). PQ (sand + industrial glucose + eisenia fetida), SQ (sand + corn straw biochar + eisenia fetida), in the concentration of water, hydraulic conditions and reed growth density and the same case, determination of groups of artificial wetland water quality, discusses the combination of different carbon sources and earthworm to artificial wetland purification water effect. 【 Result 】The removal rate of COD was improved by adding carbon source and Ectophysticus. Adding eisenia fetida could improve the purification effect of total phosphorus in constructed wetland. According to the removal rate of total phosphorus from the effluent of the 8 groups of constructed wetlands, the combined effect of industrial glucose as carbon source and Aetiworm was the best, and the removal rate was up to 94.0%. The removal rate of total nitrogen was increased by 6.3% and 5.1% when the addition of Ectophysaccharide and industrial glucose, or ectophysaccharide and corn stalk meal, respectively. The removal rate of Copper (Cu) in the treatment group with corn stalk meal was the highest, and the content of Copper in the treated water could not be detected. 【 Conclusion 】 Adding eisenia fetida in constructed wetland can enhance the purification effect of COD, total phosphorus, heavy metals copper and Zinc (Zn) in aquaculture wastewater. The addition of corn stalk biochar as carbon source significantly increased the removal rate of ammonia nitrogen in constructed wetland. The COD removal efficiency of constructed wetland was improved by adding different carbon sources and Eichenium. The removal rates of COD, total phosphorus, total nitrogen, ammonia nitrogen as well as heavy metals copper and zinc in constructed wetland were significantly increased by adding corn stalk meal and eisenia fetida. When corn stalk meal was added in constructed wetland, The copper absorption effect of eisenia fetida was the best. |
| Key words: constructed wetland; Eisenia fetida ; Carbon source; Aquaculture wastewater |
