scholarly journals Study on phytoremediation for heavy metal contaminated sediments by hydrophytes

2020 ◽  
Vol 143 ◽  
pp. 02020
Author(s):  
Tao Ma ◽  
Wenhui Zhang ◽  
Hongkai Fan ◽  
Lizhu Huang ◽  
Qing Xu ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Phragmites Australis ◽  
Eichhornia Crassipes ◽  
Hydrilla Verticillata ◽  
Alternanthera Philoxeroides ◽  
Digitaria Sanguinalis ◽  
Acorus Tatarinowii ◽  
Typha Orientalis ◽  
Cyperus Alternifolius

The remediation performances of heavy metals contaminaged sediment by hydrophytes including Alternanthera Philoxeroides, Canna indica L., Nymphaea tetragona, Typha orientalis, Phragmites australis, Phragmites australis, Hydrilla verticillata, Cyperus alternifolius L., Eichhornia crassipes, Acorus tatarinowii, Digitaria sanguinalis (L.) Scop were investigated through batch pot experiments. The results showed that the enrichment effect of Pb was better in Alternanthera Philoxeroides and Acorus tatarinowii with the BCFs of 4.42 and 1.22, and the TFs of 7.84 and 4.23, respectively. The Cr enrichment effects by Nymphaea tetragona, Hydrilla verticillata and Eichhornia crassipes (Mart.) Solms were better, which BCFs were 2.69, 1.91 and 3.71, and which TFs were 7.93, 2.07 and 2.18, respectively.

Removal of heavy metals using a wetland batch system with Carrizo (Phragmites Australis)

2020 ◽  
Author(s):  
Maribel Guzman ◽  
Maggy Romero ◽  
Michael Flores ◽  
Sebastian Bravo
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Phragmites Australis ◽  
Mine Drainage ◽  
Metal Removal ◽  
Heavy Metal Removal ◽  
Ammonia Nitrogen ◽  
Abandoned Mines ◽  
Slight Variation ◽  
Removal Of Heavy Metals

Abstract One of the greatest environmental issues related to the development of the mining activity is the generation of Acid Mine Drainage (AMD). This effluent generated by active and abandoned mines in Peru produces multiple discussions about the role of the industry for a sustainable development. Many methods have been developed for AMD treatment, being wetlands a good option for heavy metal removal. In this sense, removal of heavy metal by using laboratory constructed wetlands with Phragmites Australis was studied. During a 9-day period the variation of different physicochemical parameters and heavy metals concentrations was recorded. The pH decreased to a constant value of 8.24 after the sixth day. The electrical conductivity presented a slight variation from 1 to 1.33 µS cm-1 on the ninth day. Moreover, fluctuating values of Dissolved Oxygen and Turbidity were observed. A reduction between 69% and 93% of ammonia nitrogen (NH3-N) was registered. Cu concentration was reduced in 68% and 87%; Zn concentrations dropped in 53% and 95%; and Pb was reduced in 20% and 55%. It was concluded that Phragmites Australis can be an alternative in the treatment of the contaminants produced by AMD.

Study on the Characteristics of Heavy Metal Accumulation in Seven Dominant Plants in Shilu Iron Mines Area of Hainan

2012 ◽  
Vol 518-523 ◽  
pp. 2016-2021
Author(s):  
Hui Yan ◽  
Sheng Xu Luo ◽  
Qing Bin Yao ◽  
Ya Juan Wang ◽  
Yang Yang He ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Field Investigation ◽  
Heavy Metal Accumulation ◽  
Wild Plants ◽  
Cadmium Pollution ◽  
Good Potential ◽  
Concentration Factors ◽  
The Difference ◽  
Cyperus Alternifolius

Based on the field investigation and sampling, seven dominant wild plants and relative soil samples in Hainan Shilu iron mines area were collected. To analyze and study the contents of heavy metals Pb, Cd, Cu, Fe, Mn and Zn in these samples and the characteristics of enriching heavy metals of these dominant plants. Results of this study showed that the contents of the same heavy metal in the soils around roots system of seven dominant plants had a large range of variation, to a certain extent, it reflected the difference of the enriched characteristics of different plants to the same heavy metal. All seven dominant plants had endurance and enriched characteristics to Fe. Bothriochloa root hoarded up abundant Fe, Cu, Zn and its stored characteristics to Mn, Pb, Cd also stood out from the seven dominant plants, so it could be used as good plant which absorbed a large amount of heavy metals but mainly held in the roots, this result had a good consistance with the finding that the enriched and transferred characteristics of Bothriochloa to heavy metals in soil. In the soil of low cadmium pollution, Calopo and Bothriochloa had higher concentration factors of cadmium, this indicated they had a good potential in high cadmium pollution soil. White tephrosia and Cyperus alternifolius had the higher metastasis ability to Mn, Zn, Cd, which had the potential of phytoremediation.

scholarly journals Utilization of Rats Purun (Eleochalists of Dulcis) and Water Hyacinth (Eichhornia Crassipes) to Reduce Mercury Level (Hg) With Phytoremediation Method

2020 ◽  
Vol 2 (1) ◽  
pp. 1-11
Author(s):  
Sileni Putri ◽  
Nasoetion Nasoetion ◽  
Muhtadi Muhtadi
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Water Hyacinth ◽  
Eichhornia Crassipes ◽  
Toxic Elements ◽  
Chemical Elements ◽  
Mercury Level ◽  
Organic Fertilizer ◽  
Sample Analysis ◽  
Tidal Swamp

Metal mercury (Hg), has the chemical name hydragyrum which means liquid. Mercury metal is represented by Hg. In the periodic chemical elements Hg rank (NA) 80 and have atomic weights (BA 200,59). Rat Purun (Eleocharis dulcis) and water hyacinth (Eichhorniacrassipes) are plants that are widely found in tidal swamp land. Both plants can be used as organic fertilizer, biofilter, and absorb toxic elements such as heavy metals Lead (Pb), Iron (Fe), Mercury (Hg), Sulphate (SO4). This study aims to determine the ability of rat purun plants (Eleochalisdulcis) and water hyacinth (Eichhorniacrassipes) in reducing mercury (Hg) levels in water and to determine the effectiveness of rat purun plants (Eleochalisdulcis) and water hyacinth (Eichhorniacrassipes) in absorbing mercury Hg. Sample analysis was carried out at the Bandar Lampung Standardization Research Center.The results obtained by rat purun plants (Eleochalisdulcis) can reduce mercury levels (Hg). The effectiveness of reducing heavy metal mercury (Hg) is 97.88%. Water hyacinth plants (Eichhorniacrassipes) have effectiveness in reducing heavy metals mercury (Hg) which is equal to 96.66%.

scholarly journals Application of ecological technology for removal of COD, nitrogen and phosphorus from piggery wastewater after biogas production technology

2017 ◽  
Vol 8 (5) ◽  
pp. 252-256
Author(s):  
Thi Nguyet Vu ◽  
Van Tua Tran ◽  
Dinh Kim Dang ◽  
Thi Kim Anh Bui ◽  
Vu Hai Yen
Keyword(s):  
Phragmites Australis ◽  
Removal Efficiency ◽  
Eichhornia Crassipes ◽  
Biogas Production ◽  
Treated Wastewater ◽  
Positive Contribution ◽  
Vetiveria Zizanioides ◽  
Nitrogen And Phosphorus ◽  
Piggery Wastewater ◽  
Cyperus Alternifolius

Despite a positive contribution to economic – social development, the growth of piggeries has caused heavily environmental pollution. Currently, treated wastewater of pig farms unfortunately does not meet the national discharge standards yet. This paper presents some research results on the removing COD, nitrogen and phosphorus in piggery wastewater after anaerobic (biogas) process at pilot scale by the combined system using Phragmites australis, Cyperus alternifolius, Vetiveria zizanioides and Eichhornia crassipes. The experimental results showed that the wastewater loading rate of 47.35 l/m2.day with initial concentrations of 203.24 mg COD/l, 111.94 mgTN/l and 13.61 mgTP/l gave removal efficiency of 71.66 %, 79.26 % and 69.65 %, respectively. Thus, the removed quantity of total nitrogen (TN) and total phosphorus (TP) was of 4201.35 mg TN/m2.day và 448.76mg TP/m2.day. The obtained results indicated that the flow wetland system, using Phragmites australis, Cyperus alternifolius, Vetiveria zizanioides and Eichhornia crassipes has a rather high COD, TN and TP removal efficiency with simple operation so that it could be feasible if applied for treating pig wastewater. However, the system should be functioned longer for taking data and for evaluating its stability. Mặc dù có những đóng góp tích cực cho sự phát triển kinh tế - xã hội, việc phát triển chăn nuôi lợn đã gây ô nhiễm môi trường nghiêm trọng. Hiện nay, nước thải chăn nuôi lợn từ các cơ sở chăn nuôi sau xử lý vẫn chưa đáp ứng được các tiêu chuẩn thải của quốc gia và tiêu chuẩn ngành. Bài báo này trình bày kết quả nghiên cứu về khả năng loại bỏ COD, nitơ (N) và phôtpho (P) trong nước thải chăn nuôi lợn đã qua xử lý bằng hầm biogas của hệ thống phối hợp cây Sậy, Thủy Trúc, cỏ Vetiver và Bèo Tây ở qui mô pilot. Kết quả thực nghiệm ở tải lượng 47,35 l/m2.ngày, với COD, tổng nitơ (TN) và tổng phôtpho (TP) đầu vào trung bình là 203,24 mg/l, 111,94 mg/l và 13,61 mg/l, tương ứng, thì hiệu suất xử lý lần lượt là 71,66 %; 79,26 % và 69,65 %. Như vậy lượng TN và TP loại bỏ là 4201,35 mgN/m2.ngày và 448,76 mgP/m2.ngày. Kết quả nhận được cho thấy hệ thống sử dụng cây Sậy, Thủy Trúc, cỏ Vetiver và Bèo Tây có hiệu quả loại bỏ COD, TN và TP khá cao trong khi vận hành đơn giản nên có triển vọng áp dụng trong điều kiện thực tế để xử lý nước thải chăn nuôi lợn. Tuy nhiên để đánh giá tính ổn định, hệ thống cần được hoạt động với thời gian lâu dài hơn.

scholarly journals Bioaccumulation of heavy metals in common reed (Phragmites australis) growing spontaneously on highly contaminated mine tailing ponds in Serbia and potential use of this species in phytoremediation

2019 ◽  
Vol 43 (1) ◽  
pp. 85-95 ◽  
Author(s):  
Milijana Prica ◽  
Gordana Andrejic ◽  
Jasmina Sinzar-Sekulic ◽  
Tamara Rakic ◽  
Zeljko Dzeletovic
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Phragmites Australis ◽  
Chemical Weathering ◽  
Translocation Factor ◽  
Common Reed ◽  
Mine Tailing ◽  
Metal Extraction ◽  
Plant Organs ◽  
Tailing Ponds

Heavy metal contamination of aquatic ecosystems directly threatens the health, production and biodiversity of aquatic and surrounding terrestrial ecosystems, and it represents a serious global problem. Metal extraction during ore processing produces large amounts of wastes that remain in tailings at the mining site. Fine waste particles represent a long-term source of potentially toxic metals that can be released into the ground and surface water as a result of their progressive chemical weathering. Aquatic macrophythes have a major role in absorption and accumulation of heavy metals and thereby in natural water purification. The presence of naturally growing plants on mine tailing ponds indicates their tolerance of heavy metal pollution and suggests a possible role for them in phytoremediation. In the present study, we analysed the concentrations of heavy metals (Fe, Mn, Ni, Zn, Pb, Cd, Co, Cu) in Phragmites australis plants growing spontaneously in shallow water of several mine tailing ponds. The aims of the study were to define chemical properties of the mine spoils, determine the concentrations of heavy metals in different plant organs and assess the phytoremediation potential of common reed. The investigated sediments were notably rich in both total and available forms of Fe, Pb, Zn and Cu, with their upper concentrations close to phytotoxic levels. The greatest amounts of almost all of the investigated metals in plants from all three mine tailing ponds were found in the roots, with their concentrations positively correlated with the amounts of their available forms in the corresponding sediment. The far higher metal concentrations in the roots in comparison with other plant organs clearly indicate that the metals were strongly sequestrated within root cortical tissues and were not transferred across the endodermis. Taken altogether, the presence of the greatest amounts of metals in roots, high bioaccumulation factor and low translocation factor show that P. australis is an excluder plant species with a good phytostabilisation potential. As such, it might be efficiently used in rhizofiltration of wastewaters.

scholarly journals ANALISIS KANDUNGAN MERKURI (Hg) PADA AIR DAN DAGING IKAN PATIN SIAM (Pangasius hypopthalmus) Di KJA DANAU SIPIN JAMBI

2017 ◽  
Vol 2 (1) ◽  
pp. 9
Author(s):  
Syahrizal Syahrizal ◽  
M Yusuf Arifin
Keyword(s):  
Heavy Metals ◽  
Water Quality ◽  
Heavy Metal ◽  
Eichhornia Crassipes ◽  
Fish Farming ◽  
Threshold Value ◽  
Quality Standard ◽  
Survey Study ◽  
Predatory Fish ◽  
Purposive Sampling

AbstractEnvironment Agency Jambi Province in 2014 stipulates that the Batanghari River uncategorised heavy pollution with the effluent of 0.3265 ppm. The river water flow into the Lake Sipin, so worried farmers catfish (Pangasius hypopthalmus) in the floating  nets cage on heavy metal pollution Hg when exceeding quality standards. The content of Hg was observed through the method of survey study purposive sampling with 4 stations for 3 weeks of observation with sample analysis Atomic Absorption Spectrophotometer. The observation that the accumulation of heavy metals mercury (Hg) meat catfish in the lake Sipin from 0.0930 to 0.3960 ppm. Hg content is in torelansi SNI standards for heavy metals Hg categories food fishery products including mollusks and shrimp is 1 ppm and 0.5 ppm for predatory fish. So fish farming Lake Sipin still safe for consumption humans..Hg value of water is observed from 0.0001 to 0.0009 ppm. Hg content was lower when compared to the water quality standard by the Ministry of Environment No. 51 In 2004 the threshold value for the biota is 0.001 mg / l (ppm). Then the category of heavy metal content of Hg in the waters of Lake Sipin still at the threshold of normal. Occurrence repaired Hg waters presumably because the number found fish brooms, Hypostomus plecostomus and plant water hyacinth, Eichhornia crassipes which absorbed Hg in the waters. The state of water quality when the observation temperatures averaging 30-32 ° C, pH 6.6 to 7.4 and DO 7.0 to 8.4 ppm. The range of this parameter is feasible for the cultivation of catfish (Pangasius Hyphopthalmus), as it supports the growth and survival.Keywords: Bioaccumulation Hg, Lake Sipin, catfish AbstrakBadan Lingkungan Hidup Provinsi Jambi pada tahun 2014 menetapkan bahwa Sungai Batanghari  dikategorikan tercemari berat dengan limbah 0,3265 ppm. Air sungai ini mengalir ke Danau Sipin, sehingga para petani ikan patin (Pangasius hypopthalmus) di KJA kawatir terjadi pencemaran logam berat Hg melebihi standar. Kandungan Hg diamati melalui metode studi survei purposive sampling dengan 4 stasiun selama 3 minggu pengamatan sampel dengan analisis Spektrofotometer Serapan Atom. Hasil pengamatan terhadap akumulasi logam merkuri (Hg) pada  ikan patin di Danau Sipin dari 0,0930 sampai 0,3960 ppm. Katagori kandungan Hg yang bisa di torelansi menurut standar  SNI untuk produksi pangan perikanan termasuk moluska dan udang adalah 1 ppm dan 0,5 ppm untuk ikan predator. Jadi budidaya ikan Danau Sipin masih aman untuk dikonsumsi manusia. Nilai Hg airnya dari 0,0001 sampai 0,0009 ppm. Kandungan Hg ini lebih rendah bila dibandingkan dengan standar kualitas air oleh Kementerian Lingkungan Hidup No. 51 Pada tahun 2004 nilai ambang untuk biota adalah 0,001 mg / l (ppm). Kemudian kategori kandungan logam berat Hg di perairan Danau Sipin masih di ambang normal. Terjadinya perbaikan Hg air diduga karena ditemukan sejumlah ikan sapu-sapu, Hypostomus plecostomus dan tanaman eceng gondok, Eichhornia crassipes yang dapat menyerap Hg di perairan. Keadaan kualitas air pengamatan berupa  suhu  rata-rata 30-32 ° C, pH 6,6 sampai 7,4 dan DO 7,0 sampai 8,4 ppm. Kisaran parameter ini layak untuk budidaya ikan patin (Pangasius Hyphopthalmus), karena mendukung untuk pertumbuhan dan kelangsungan hidup.Kata kunci: Bioakumulasi Hg, Danau Sipin, ikan patin

Accumulation and Distribution of Heavy Metals in Phragmites australis in the Wetland of Liaohe River Estuary

2011 ◽  
Vol 356-360 ◽  
pp. 994-997 ◽  
Author(s):  
Yong Xia Hou ◽  
Yan Wang ◽  
Hui Yin Li ◽  
Xin Xin Li ◽  
Xiao Jun Hu
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Phragmites Australis ◽  
Aerial Part ◽  
River Estuary ◽  
Alternative Technique ◽  
Underground Part ◽  
Liaohe River ◽  
Sampling Points ◽  
Cu And Zn

Phytoextraction has been recognized as an alternative technique for the remediation of wetland contaminated by heavy metals. The objective of this paper is to investigate the characteristics of heavy metal phytoextaction by phragmites australis and the distribution in soils and phragmites australis of 13 sampling points distributed in fields of Zhaoquanhe, Yangjuanzi and Dongguo in Liaohe estuary.The results showed that the content of heavy metal of Cu and Zn is close in the three phragmites australis fields. The content of heavy metal of Pb in Dongguo field is higher than the others. The content of heavy metal of Cd is lowest for all the heavy metals in the three fields. For the content of heavy metal in different layer soils in the three phragmites australis fields, the content of heavy metal of Cu, Pb, Zn in soils of 0-10 cm, 10-20 cm is higher than in other layer soils. for Cd in soils of 0-30 cm is higher than in other layer soils. And the content of heavy metal in siols of 30-40 cm is lowest for all the heavy metals. The transfer and interaction of Cu, Zn, Cd and Pb in the soil- phragmites australis systems in the three fields is studied, the content of heavy metal of Cu, Zn, Cd is that soils>phragmites australis of aerial part>phragmites australis of underground part, and for the content of heavy metal of Pb, soils>phragmites australis of aerial part≈phragmites australis of underground part. The biological concentration factor of heavy metal of Cu, Zn, Cd is low and transfer coefficient is high relatively .

scholarly journals Phytoremediation of heavy metal polluted soil and water in Vietnam

2014 ◽  
Vol 6 (1) ◽  
pp. 47-51 ◽  
Author(s):  
Thi Kim Anh Bui ◽  
Dinh Kim Dang ◽  
Trung Kien Nguyen ◽  
Ngoc Minh Nguyen ◽  
Quang Trung Nguyen ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Eichhornia Crassipes ◽  
Cynodon Dactylon ◽  
Pteris Vittata ◽  
Cyperus Rotundus ◽  
Pistia Stratiotes ◽  
Vetiveria Zizanioides ◽  
Nypa Fruticans ◽  
Pityrogramma Calomelanos

Phytoremediation has been intensively studied during the past decade due to its cost-effectiveness and environmental harmonies. Most of the studies on treatment of heavy metal pollution in soil and water by plant species have been done in developed countries but are limited in Vietnam. In this study, we presented some research results of phytoremediation of polluted soils and water with heavy metals that were done by Institute of Environmental Technology for several last years. For treatment of heavy metal pollution in the water, some plants have great ability to accumulate heavy metals such as Vetiveria zizanioides, Phragmites australis, Eichhornia crassipes, Pistia stratiotes, Ipomoea aquatica, Nypa fruticans and Enhydra fluctuans. The heavy metal uptake into shoots and roots of 33 indigenous plant species in Thai Nguyen province was also determined. Two species of the plants investigated, Pteris vittata L. and Pityrogramma calomelanos L. were As hyperaccumulators, containing more than 0.1% As in their shoots while Eleusine indica, Cynodon dactylon, Cyperus rotundus and Equisetum ramosissimum accumulated very high Pb (0.15-0.65%) and Zn (0.22-1.56%) concentrations in their roots. Some experiments to clarify the potential of several plants as good candidates for phytoremediation of polluted soil by heavy metals were carried out in our institute. Phương pháp sử dụng thực vật để xử lý ô nhiễm đã được nghiên cứu nhiều trong thập kỷ qua do chi phí thấp và thân thiện với môi trường. Hầu hết các nghiên cứu về xử lý ô nhiễm kim loại nặng trong đất và nước bằng thực vật đã được thực hiện ở các nước phát triển nhưng ít có tại Việt Nam. Trong nghiên cứu này, chúng tôi giới thiệu một số kết quả dùng công nghệ thực vật để xử lý ô nhiễm kim loại nặng trong đất và nước tại Viện Công nghệ môi trường trong những năm gần đây. Đối với xử lý ô nhiễm kim loại nặng trong nước, một số thực vật có khả năng tích lũy tốt kim loại nặng như Vetiveria zizanioides, Phragmites australis, Eichhornia crassipes, Pistia stratiotes, Ipomoea aquatica, Nypa fruticans và Enhydra fluctuans. Sự hấp thụ và tích lũy kim loại nặng trong phần trên mặt đất và rễ của 33 loài thực vật bản địa tại Thái Nguyên cũng đã được xác định. Hai loài thực vật khảo sát là Pteris vittata và Pityrogramma calomelanos là những loài siêu tích lũy As, chứa hơn 0,1% As trong phần trên mặt đất của cây. Eleusine indica, Cynodon dactylon, Cyperus rotundus và Equisetum ramosissimum tích lũy Pb (0,15-0,65%) và Zn (0,22-1,56%) rất cao trong rễ. Một số thí nghiệm đánh giá tiềm năng của một số thực vật là đối tượng tốt cho xử lý ô nhiễm kim loại nặng trong đất đã được tiến hành trong phòng thí nghiệm của Viện Công nghệ môi trường.

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