The subfamily Gerbillinae as arid climate indicator

In the current century, a suitable strategy is concerned for optimal consumption of energy, due to limited natural resources and fossil fuels for moving towards sustainable development and environmental protection. Given the rising cost of energy, environmental pollution and the end of fossil fuels, zero-energy buildings became a popular option in today's world. The purpose of this study is to investigate the factors affecting the design of zero-energy buildings, in order to reduce energy consumption and increase productivity, including plan form, climatic characteristics, materials, coverage etc. The present study collects the features of zero-energy building in Isfahan, which is based on the Emberger Climate View in the arid climate, by examining the books and related writings, field observations and using a descriptive method, in the form of qualitative studies. The results of the research showed that some actions are needed to save energy and, in general, less consumption of renewable energy by considering the climate and the use of natural conditions.

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EVALUATION OF POLYPHENOLS CONTENT OF TWO WILD\\r\\nASTERACEAE FROM ARID CLIMATE AND SCREENING OF THEIR\\r\\nANTIOXIDANT AND ANTIMICROBIAL ACTIVITIES

10.21506/j.ponte.2020.4.2 ◽

2020 ◽

Vol 76 (4) ◽

Author(s):

Mebarka BOUZIANE ◽

Wafa MIHOUBI ◽

Mahfoud HADJ MAHAMMED

Keyword(s):

Antimicrobial Activities ◽

Arid Climate

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Wastewater Treatment by Stabilization Ponds with and without Macrophytes under Arid Climate

Water Science & Technology ◽

10.2166/wst.1993.0228 ◽

1993 ◽

Vol 28 (10) ◽

pp. 177-181 ◽

Cited By ~ 16

Author(s):

L. Mandi ◽

N. Ouazzani ◽

K. Bouhoum ◽

A. Boussaid

Keyword(s):

Bacterial Load ◽

Fecal Coliforms ◽

Arid Climate ◽

Organic Load ◽

Experimental Systems ◽

Helminth Eggs ◽

Stabilization Ponds ◽

Treated Effluents ◽

Summer Time ◽

Influent Flow

This paper presents a comparative study of two experimental systems, stabilization ponds without macrophytes and macrophytic ponds, to purify wastewater under arid climate of Marrakesh. Organic load (COD, TSS), bacterial load (SF, CF) and parasitical load (helminth eggs) are significantly reduced in both systems. Even though water loss was more important at the macrophytic ponds (evapotranspiration reaches 60% of influent flow), this system shows generally the best efficiency in purifying wastewater. In summer time, TSS and COD depletion is better on macrophytic ponds (TSS: 95%, COD: 87%). The stabilization ponds are more efficient to reduce nutrients: NH4+: 72%. PO4: 63% at the same period. Fecal streptococci and fecal coliforms are reduced more in stabilization ponds (CF: 99.4%, SF: 99.7%) than macrophytic ponds (CF: 96.2%, SF: 94.7%). No helminth eggs were found in the effluent from either system. The two systems ensure optimal removal of parasites allowing the eventual reuse of the treated effluents for agricultural purposes.

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