It is necessary to study the parameters that affect water quality in order to devise mitigation measures if water quality would be at risk or negatively affected by those parameters. Those parameters are physical, chemical, biological, and hydraulic characteristics. This research will study the effect of channel geometry on different water quality variables, which is important in designing new irrigation canals in order to see how its geometry will affect water quality and lessen any negative impact if possible; also this study could aid in designing more reliable waste allocation plans for waterways. The studied geometric characteristics are top width, bottom width, water depth, side-slopes and channel length. Sheikh Zayed canal in Egypt is taken as the reference case study canal. Studied water quality variables are algae, nutrients, total dissolved solids (TDS), total suspended solids (TSS), pH, alkalinity and total inorganic carbon. It was found that concentrations of all water quality variables in water changed as a result of changing channel geometry. Some water quality variables such as algae, nutrients, and TSS are greatly affected, whereas others such as pH, alkalinity and total inorganic carbon are slightly affected.

中文翻译：

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研究航道几何形状对不同水质变量的影响，以制定有效的航道设计和废物分配计划

有必要研究影响水质的参数，以便在水质受到这些参数的威胁或负面影响时制定缓解措施。这些参数是物理、化学、生物和水力特性。这项研究将研究渠道几何形状对不同水质变量的影响，这对于设计新的灌溉渠道很重要，以了解其几何形状将如何影响水质并尽可能减少任何负面影响；这项研究还有助于设计更可靠的水道废物分配计划。研究的几何特征是顶部宽度、底部宽度、水深、边坡和通道长度。埃及的谢赫扎耶德运河被作为参考案例研究运河。研究的水质变量是藻类、营养物质、总溶解固体 (TDS)、总悬浮固体 (TSS)、pH、碱度和总无机碳。发现水中所有水质变量的浓度都随着通道几何形状的变化而变化。一些水质变量如藻类、营养物质和 TSS 受到很大影响，而其他变量如 pH 值、碱度和总无机碳受到轻微影响。