CAJ | 학술논문

由于地下水的严重超采，河水将逐步作为新疆农田节水灌溉的替代水源，河水中泥沙的去除率是河水能否推广的主要障碍，目前科技人员在研究各种装置用于降低河水中的泥沙。其中重力沉沙过滤池是清除泥沙比较好的一种除沙装置，其构造包括沉沙池、过滤网、清水池、集污槽等。该工程利用沉淀池与过滤网对泥沙进行两级处理，出池水质泥沙含量有明显降低。通过对玛纳斯县五圣宫村重力沉沙池一个灌溉期的现场含沙量试验研究和分析，结果表明，该重力沉沙过滤池对河水泥沙总处理率可以达到46％左右，出池泥沙粒径在0．05 mm 以下。重力沉沙池增加过滤网结构型式后，沉沙效率可以提高30％以上。可以看出，采用这种结构型式的沉沙池，在处理泥沙方面较传统的沉沙池有一定的优势，利用过滤网可以将水沙进行强制分离，尤其对细颗粒泥沙比自然沉降效果显著。
유우지하수적엄중초채，하수장축보작위신강농전절수관개적체대수원，하수중니사적거제솔시하수능부추엄적주요장애，목전과기인원재연구각충장치용우강저하수중적니사。기중중력침사과려지시청제니사비교호적일충제사장치，기구조포괄침사지、과려망、청수지、집오조등。해공정이용침정지여과려망대니사진행량급처리，출지수질니사함량유명현강저。통과대마납사현오골궁촌중력침사지일개관개기적현장함사량시험연구화분석，결과표명，해중력침사과려지대하수니사총처리솔가이체도46％좌우，출지니사립경재0．05 mm 이하。중력침사지증가과려망결구형식후，침사효솔가이제고30％이상。가이간출，채용저충결구형식적침사지，재처리니사방면교전통적침사지유일정적우세，이용과려망가이장수사진행강제분리，우기대세과립니사비자연침강효과현저。
River will gradually become the major farmland water source in water-saving irrigation scheme in Xinjiang ,due to the serious over exploitation of groundwater .Science and technology teams are developing all sorts of devices to reduce the sediment in the river water ,because the removal rate of sediment in the river water stands for the major obstacle to the promotion of the river water in irrigation .Gravity desilting filtration is a better method ,the filter tank includes a sedi-mentation tank ,a filter net ,a clear water tank and a set sewage tank .According to the experimental research and analy-sis of the gravity desilting filter tank in Wushenggong ,Manasi county ,the device can significantly reduce the sediment concentration through the sedimentation tank and the filter net with the highest sand removal rate of 46% ,and sediment particle sizes under 0 .05 mm .After the installation of the filter net structure ,the desilting efficiency can be increased more than 30% .Therefore the gravity desilting filter tank has certain advantages over the conventional tanks ,the appli-cation of the filter net enhances the efficiency of separating sand and water ,which has a great effect on desilting fine sed-iment .