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The Ability of Some Aquatic and Terrestrial Plants to Purify Domestic Wastewater

Phyton-International Journal of Experimental Botany 2023年第8期92卷 2245-2260页

作者： Abida Kausar Noreen Zahra Humaira Kiran Sadia Asim Abid Raza Ali Raza Department of Botany Government College Women UniversityFaisalabad38000Pakistan Department of Botany University of AgricultureFaisalabad38040Pakistan Department of Chemistry Government College Women UniversityFaisalabad38000Pakistan Department of Agronomy Muhammad Nawaz Shareef University of AgricultureMultan66000Pakistan College of Agriculture Fujian Agriculture and Forestry UniversityFuzhou350002China

The study aimed to evaluate the ability of some terrestrial and aquatic plants for wastewater puriﬁ*** plants can remove pollutants from wastewater by consuming and accumulating various contaminants in different parts of *** aquatic and terrestrial plants(Rosa sinensis,Typha latifolia,Ocimm bacilicum,Azolla pinnata,and Salvinia molesta)which have the ability to decrease water pollution were utilized in this *** capability offive different species of plants was investigated by measuring chemical oxygen demand(COD),biological oxygen demand(BOD),electrical conductivity(EC),total dissolved solids(TDS),and pH of the *** this research,some aquatic and terrestrial plants were transplanted in wastewater plastic pots containing domestic wastewater with different ratios of 50%and 100%.Then,after 30 days,the physiological and biochemical parameters of plants were calculated to observe the effect of wastewater on *** revealed higher chlorophyll and carotenoids in typha plants treated with 100%*** highest percentage of elimination in BOD(65%),COD(27%),TDS(72%),EC(83%),and pH(6.8%)was noted with the use of typha and ***,total soluble sugars,total free amino acids,and total proteins were found maximum in the hibiscus plant as compared to the other plants under 100%and 50%domestic wastewater treatment,while typha and ocimum showed lower values of these parameters irrespective of wastewater ***,the COD,BOD,TDS,EC,and pH trend was higher in 100%wastewater as compared to 50%*** into account the accumulation capacity of the tested plants especially typha can be efﬁciently used for the treatment of domestic wastewater.

关键词： biological oxygen demand chemical oxygen demand domestic wastewater aquatic plants terrestrial plants

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Aerobic Degradation Process in Palm Oil Mill— Issues, Challenges and Upsurging Its Efficiency through Bioremediation

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Journal of Water Resource and Protection 2022年第7期14卷 515-530页

作者： Ili Bazilah Abd Razak Nor Hidayah Bohari Elya Masya Mohd Fishal Nurul Lina Mohamad Muhamad Nurfikri Azmi Muhammad Firdaus Fahmi Mohd Razali Hamdan Ibrahim Crop Protection and Biosolution Department FGV R&D Sdn Bhd Lengkuk Teknologi Bandar Enstek Negeri Sembilan Malaysia Feed and Industrial Technology FGV Applied Technologies Sdn Bhd Lengkuk Teknologi Bandar Enstek Negeri Sembilan Malaysia

Palm oil mill effluent (POME) is liquid waste produced from palm oil extraction process. Discharging it to the river without treatment is violation according to Malaysia Environment of Quality Act (EQA) 1974. In Malaysia, ponding system is a conventional treatment method for POME due to its economical and simple process. The treatment process mainly involves two main treatment phases;anaerobic and aerobic degradation. Anaerobic degradation has a proven track record in reducing pollutant properties in POME up to 85%. The real challenge is to increase the efficiency of aerobic process as the biological oxygen demand (BOD) discharge limit has been further reduced from 100 mg·L-1 to less than 20 mg·L-1. One of economical and feasible approach to increase the efficiency of aerobic phase is via bioremediation. This paper describes the limitation of aerobic degradation in ponding system, besides discussed on the important aspects that need to be optimized for a success implementation of bioremediation and its challenges.

关键词： Aerobic Anaerobic Bioremediation biological oxygen demand Palm Oil Mill Effluent

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Application study of coupled model between reservoir organic pollutant BOD5-DO and temperature

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Global Geology 2010年第Z1期 151-154页

作者： LI Yong and LI Xin College of Construction Engineering,Jilin University,Changchun 130026,China

The BOD5-DO (Biochemical oxygen demand in five days and Dissolved oxygen) are important indexes that reflect the organic pollution extent of water,but the variation of the indexes is closely related with water temperature. The study on the coupled mathematical model reflecting the BOD5-DO with temperature is the key to reveal the mechanism of the migration and distribution of BOD5-DO in the water. The authors presented 1-D mathematical model for the three variables in vertical direction,and gave accurate solution for the equations under steady state,the relation among the variables and the method for solving BOD5-DO concentrations at different depth and temperature.

关键词： organic pollution biological oxygen demand dissolved oxygen coupled mathematical model

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