Necessity of water treatment to meet lake water quality goals in Chitgar Lake

IF 1.1 4区环境科学与生态学 Q4 LIMNOLOGY Lake and Reservoir Management Pub Date : 2021-01-15 DOI:10.1080/10402381.2020.1843569

J. Bayat, S. Hashemi, M. Nikzad, Seyed Mohammadreza Talakesh

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引用次数: 1

Abstract

Abstract Bayat J, Hashemi SH, Nikzad MF, Talakesh SMR. 2021. Necessity of water treatment to meet lake water quality goals in Chitgar Lake. Lake Reserv Manage. 37:160–169. Managing urban lake water quality to prevent algae blooms is important for tourism at Chitgar Lake, which is a shallow artificial lake created for recreation in northwest Tehran City, Iran. Its water quality is influenced by the Kan River as its water source, as well as by peripheral activities and bird excrement. This study investigates the effectiveness of different water quality management practices including restricted water intake rules and water treatment from April 2013 to April 2020 to improve the water quality of the lake in order to limit algae blooms. The nonparametric Mann–Kendall method and the Sen function were applied to decipher trends and assess impacts of the practices. Despite intake water control, the trend analysis showed that chlorophyll-a and total phosphorus had increased after the opening of the lake in 2013. However, this incremental trend was greatly reduced after commissioning a treatment plant for improving water quality. The treatment system improves the quality of diverted Kan River water during winter lake refill and is used to treat lake water during the rest of the year. The specific characteristics of the lake and the Kan River prevent achievement of target water quality without water treatment.

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赤加尔湖水质指标水质处理的必要性

[摘要]Bayat J, Hashemi SH, Nikzad MF, Talakesh SMR。2021. 赤加尔湖水质指标水质处理的必要性。湖泊保护区管理。37:160-169。管理城市湖泊水质以防止藻类繁殖对奇加尔湖的旅游业很重要。奇加尔湖是伊朗德黑兰市西北部为娱乐而建造的一个浅水人工湖。其水质受以赣河为水源、周边活动和鸟类粪便的影响。本研究调查了2013年4月至2020年4月期间不同水质管理措施的有效性，包括限制取水规则和水处理，以改善湖泊水质，以限制藻类繁殖。应用非参数Mann-Kendall方法和Sen函数来解读趋势和评估实践的影响。趋势分析表明，在采水控制的情况下，2013年开湖后叶绿素-a和总磷呈上升趋势。然而，在为改善水质而启用处理厂后，这种增加趋势大大减少。该处理系统在冬季湖泊补充期间改善了改道的坎河水的质量，并在一年中的其余时间用于处理湖泊水。湖泊和坎河的特殊特性使不进行水处理无法达到目标水质。

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来源期刊

Lake and Reservoir Management 环境科学-海洋与淡水生物学

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6.70%

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期刊介绍： Lake and Reservoir Management (LRM) publishes original, previously unpublished studies relevant to lake and reservoir management. Papers address the management of lakes and reservoirs, their watersheds and tributaries, along with the limnology and ecology needed for sound management of these systems. Case studies that advance the science of lake management or confirm important management concepts are appropriate as long as there is clearly described management significance. Papers on economic, social, regulatory and policy aspects of lake management are also welcome with appropriate supporting data and management implications. Literature syntheses and papers developing a conceptual foundation of lake and watershed ecology will be considered for publication, but there needs to be clear emphasis on management implications. Modeling papers will be considered where the model is properly verified but it is also highly preferable that management based on the model has been taken and results have been documented. Application of known models to yet another system without a clear advance in resultant management are unlikely to be accepted. Shorter notes that convey important early results of long-term studies or provide data relating to causative agents or management approaches that warrant further study are acceptable even if the story is not yet complete. All submissions are subject to peer review to assure relevance and reliability for management application.