Phosphorus and Iron Distribution in the Sediments of the Yellow River

2015 ◽  
Vol 713-715 ◽  
pp. 2779-2784
Author(s):  
Xu Yang Ma ◽  
Xiao Hong Yang ◽  
Ya Li Wu ◽  
Ming Mei Han ◽  
Hong Wei Yang
Keyword(s):  
Yellow River ◽  
Human Life ◽  
Water Bodies ◽  
Biogenic Elements ◽  
Oxide Surface ◽  
Limiting Factor ◽  
Important Indicator ◽  
Crustal Abundance ◽  
Iron Iron ◽  
Absorption Features

Sediment was important storeroom of pollutants and acted as the"source"and the"sink"role [1-2]. Phosphorus not only was a important biogenic elements but also a major limiting factor of water eutrophication.Primary productivity of water bodies was effected by phosphorus migration and circulation in interact of sea-land[3]. As we all known,crustal abundance of iron was 6.71% and ranked fourth, it was trace elements that played an important role in activities of human life, meanwhile ,growth of planktonic algae was limited by iron. Iron has a strong absorption features because of its oxide surface features .Circulation and transformation of phosphorus were effected by geochemical cycling of iron[4-6]. Studies have shown[7-8]that total of phosphorus and iron can be used as an important indicator what evaluated the degree of pollution. Released phosphorus of sediments was an important factor that effected nutritional status of water bodies. TP through physical,chemical,biological effected were combined with andiron and other minerals. So, determinating TP and TFe of sediment and analyzing its relevance were very important, it could further reveal the pollution status of water and analysis the pollution trends .

scholarly journals Quantitative Proteomics Reveals that GmENO2 Proteins Are Involved in Response to Phosphate Starvation in the Leaves of Glycine max L.

2021 ◽  
Vol 22 (2) ◽  
pp. 920
Author(s):  
Ling Cheng ◽  
Wanling Min ◽  
Man Li ◽  
Lili Zhou ◽  
Chuan-Chih Hsu ◽  
...  
Keyword(s):  
Glycine Max ◽  
Molecular Mechanisms ◽  
Human Life ◽  
Phosphate Starvation ◽  
Limiting Factor ◽  
Transcriptional Level ◽  
Label Free ◽  
Promoter Regions ◽  
Glycine Max L ◽  
Soybean Plants

Soybean (Glycine max L.) is a major crop providing important source for protein and oil for human life. Low phosphate (LP) availability is a critical limiting factor affecting soybean production. Soybean plants develop a series of strategies to adapt to phosphate (Pi) limitation condition. However, the underlying molecular mechanisms responsible for LP stress response remain largely unknown. Here, we performed a label-free quantification (LFQ) analysis of soybean leaves grown under low and high phosphate conditions. We identified 267 induced and 440 reduced differential proteins from phosphate-starved leaves. Almost a quarter of the LP decreased proteins are involved in translation processes, while the LP increased proteins are accumulated in chlorophyll biosynthetic and carbon metabolic processes. Among these induced proteins, an enolase protein, GmENO2a was found to be mostly induced protein. On the transcriptional level, GmENO2a and GmENO2b, but not GmENO2c or GmENO2d, were dramatically induced by phosphate starvation. Among 14 enolase genes, only GmENO2a and GmENO2b genes contain the P1BS motif in their promoter regions. Furthermore, GmENO2b was specifically induced in the GmPHR31 overexpressing soybean plants. Our findings provide molecular insights into how soybean plants tune basic carbon metabolic pathway to adapt to Pi deprivation through the ENO2 enzymes.

scholarly journals Removal of Heavy Metals from Chithrapuzha River Water by Iron Oxide Nanoparticles Prepared Via Green Synthesis Methods

2020 ◽  
Vol 36 (6) ◽  
pp. 1154-1160
Author(s):  
G. DEEPA ◽  
M. JEYARAJ ◽  
P. N. Magudeswaran
Keyword(s):  
Heavy Metals ◽  
Green Synthesis ◽  
River Water ◽  
Human Life ◽  
Aloe Vera ◽  
Cost Effective ◽  
Water Bodies ◽  
Synthesis Methods ◽  
Healthy Human ◽  
Aquatic Life

On account of industrialization and increasing population, the water bodies get polluted by means of degradable and non-degradable substances. In 21st century, it is necessary to maintain a healthy environment especially water bodies for the survival of not the aquatic animals but also for healthy human life. Recent advances suggest that the issues related to water quality could be resolved by using nanoparticles and nano-filtration membrane methods from the development of nanotechnology. In this research, attempt to remove heavy metals from Chithrapuzha River water at Cochin bar mouth (S1) and Fact barge jetty (S2) using Fe2O3 prepared via green synthesis using Egg albumin and Aloe vera. Our results provoke that, the synthesis of Fe2O3 nanoparticle is cost-effective and eco-friendly and also good in nano-regime. Results of filtration studies showed that Fe2O3 nanoparticles remove heavy metals from Chithrapuzha River water and also increases the DO content which helps the survival of aquatic life.

scholarly journals New Perspectives on Iron-Based Nanostructures

Processes ◽  
2020 ◽  
Vol 8 (9) ◽  
pp. 1128
Author(s):  
Seyedeh-Masoumeh Taghizadeh ◽  
Aydin Berenjian ◽  
Marziyeh Zare ◽  
Alireza Ebrahiminezhad
Keyword(s):  
Pure Iron ◽  
Human Life ◽  
Zero Valent Iron ◽  
Iron Hydroxides ◽  
Human Beings ◽  
Iron Iron ◽  
Iron Based ◽  
Forms Of Iron ◽  
Structure Properties

Among all minerals, iron is one of the elements identified early by human beings to take advantage of and be used. The role of iron in human life is so great that it made an era in the ages of humanity. Pure iron has a shiny grayish-silver color, but after combining with oxygen and water it can make a colorful set of materials with divergent properties. This diversity sometimes appears ambiguous but provides variety of applications. In fact, iron can come in different forms: zero-valent iron (pure iron), iron oxides, iron hydroxides, and iron oxide hydroxides. By taking these divergent materials into the nano realm, new properties are exhibited, providing us with even more applications. This review deals with iron as a magic element in the nano realm and provides comprehensive data about its structure, properties, synthesis techniques, and applications of various forms of iron-based nanostructures in the science, medicine, and technology sectors.

Infiltration Characteristics of Topsoil in Reclamation Farmland Filled with Yellow River Sediment

2014 ◽  
Vol 988 ◽  
pp. 498-501
Author(s):  
Fang Shao ◽  
Dong Wen Liu ◽  
Shu Jiang ◽  
Zhi Yong Qiao ◽  
Shan Lin
Keyword(s):  
River Sediment ◽  
Yellow River ◽  
Infiltration Rate ◽  
Water Infiltration ◽  
First Year ◽  
Infiltration Process ◽  
Important Indicator ◽  
The Third ◽  
Yellow River Sediment ◽  
And Control

Infiltration is an important indicator of water and nutrient holding capacity of soil. Lap infiltration apparatus was used to measure vertical water infiltration process in the third year of Yellow River sediment filling reclamation. Five infiltration models were selected to fit the infiltration characteristic curves, analyzed the infiltration experimental results during 3 years of reclamation. The results showed that, the mean initial infiltration rate and mean stable infiltration rate of filling farmland in the third year were 17.06mm/min and 2.38mm/min, and were 8.81mm/min and 0.99 mm/min higher than that of the first year, 3.58mm/min and 0.39mm/min higher than that of the second year. It indicated that, infiltration rate of filling farmland increased significantly after cultivation due to the farming practices and roots development, and the role of soil microorganisms and small animals. Filling farmland has some self-recovery capabilities. In addition, Kostiakov model has better fitting effect than Mezencev model for both filling farmland and control farmland.

scholarly journals Differences in thickness variations of activated carbon in decreasing oil and grease levels using modified grease trap on the canteen wastewater

2021 ◽  
Vol 30 (1) ◽  
pp. 106-116
Author(s):  
Elanda Fikri ◽  
Dhaifina Hanifati ◽  
Nurul Hidayah
Keyword(s):  
Activated Carbon ◽  
Textile Industry ◽  
Human Life ◽  
Univariate Analysis ◽  
Domestic Wastewater ◽  
Sampling Technique ◽  
Water Bodies ◽  
Residual Water ◽  
Oil And Grease ◽  
Thickness Variations

Wastewater is residual water of industrial activities and domestic wastewater that is derived from daily activities of human life related to water usage, such wastewater should not be discharged into water bodies if it has not met the standards based on the regulation. Oil and grease contained in the water bodies will form a layer on the surface because the density of oil is lower than the density of water. The layer of oil and grease will block the entry of sunlight and cause the inability in the photosynthesis process of aquatic plants. The textile industry facilitates canteens within the company which operates daily at 11.00–13.00 Western Indonesian Time, resulting in the domestic wastewater from the canteen kitchen activities. The purpose of this study was to determine differences in the thickness variations of activated carbon to reduce oil and grease levels using modified grease traps on the canteen wastewater at PT. Sipatex Putri Lestari. The type of study used was categorized as a field experiment with a pretest–posttest research design. The population of the study was the entire canteen wastewater of PT. Sipatex Putri Lestari. The sampling technique used the time composite method. The univariate analysis of the study showed the average number of decreases in oil and grease levels in the treatment as 12.32, 15.98 and

scholarly journals Current Status of Water Bodies of Karelia as a Result of Natural, Climatic and Anthropogenic Factors’ Impact

2017 ◽  
Author(s):  
Keyword(s):  
Chemical Composition ◽  
Atmospheric Precipitation ◽  
Point Sources ◽  
Water Bodies ◽  
Anthropogenic Sources ◽  
Current Status ◽  
Anthropogenic Factors ◽  
Biogenic Elements ◽  
Lake Ladoga ◽  
Reservoir Water

It has been shown that the status of some Karelian water bodies had changed as a result of human impact and atmospheric precipitation has a role in the surface waters’ chemical composition formation. Assessment of biogenic elements and organic matter input to the Lake Onego and the Lake Ladoga from various natural and anthropogenic sources has been done. Higher load from point sources in comparison with diffuse sources has been registered for the Lake Onego in comparison with the Lake Ladoga. Many-year change of the Vygozero reservoir water chemical composition has been presented. This reservoir receives the Segezh paper-pulp plant waste waters and the Kenti River system waters with technogenic waters from the Kostomuksha mining/concentrating plant. It has been stated that atmospheric precipitations serve the main source of the biogenic elements and heavy metals input, while input of mineral and organic substances with the precipitation is insignificant. For the first time assessment of the Karelian water bodies’ state caused by the natural, climatic, and anthropogenic factors’ impact has been done.

scholarly journals RESTORATION OF WATER BODIES POLLUTED WITH REFINED PRODUCTS USING EXTENDED GRAPHITE SORBENT

2021 ◽  
Vol 5 (33) ◽  
pp. 94-99
Author(s):  
Yu. Zabulonov ◽  
◽  
O. Puhach ◽  
Yu. Kyseliov ◽  
L. Odukalec ◽  
...  
Keyword(s):  
Oil Spills ◽  
Human Life ◽  
Oil Production ◽  
Polymeric Materials ◽  
Water Bodies ◽  
Oil Companies ◽  
Material Resources ◽  
Significant Damage ◽  
Oil Corporations ◽  
Transportation Routes

Oil and its distillation products play an important role in human life. In the process of distilling oil, we get important products for the life of a modern person. It is hard for a person to live without gasoline, diesel fuel, lubricants and polymeric materials. The chemical industry is also heavily dependent on oil. Oil production makes a significant contribution to the economy and at the same time causes significant damage to the habitat of humans and animals. Nowadays the oil production process may cause oil spills into the upper soil layers and water bodies. Also, the likelihood of accidents during the production, transportation and distillation of oil is not excluded. Most accidents occur due to corrosion of pipes, which are not always inspected and replaced in due time. Each pipeline has its own service life, oil companies are required to monitor the condition of pipes, valves, etc. It is necessary to create special commissions to control the transportation routes. It is always better to prevent an accident than to clean up the spill and clean the environment from pollution products. Unfortunately, the leaders of large oil corporations do not want to replace pipelines in time, trying to save some material resources. As a result, animals, birds and inhabitants of reservoirs die. Not only adult representatives of the animal world can die, but their embryos, they are very sensitive even to a small amount of oil and its products. Animals listed in the Red Book are dying. Every year more and more representatives of flora and fauna suffer from human mistakes. Some species are on the verge of extinction. A man in pursuit of technological progress ruins his habitat. A large number of oil fields are located at the bottom of reservoirs, as a result, we have oil spills during production at the bottom and surface of the reservoir. The effect of these processes on fish is almost always lethal. Birds, during migration, are also exposed to the detrimental effects of oil spills. Oil contaminates their feathers and enters the respiratory tract. As a result, contaminated feathers do not allow to continue the flight.

THg and MeHg in Water Bodies of Xiaolangdi Reservoir of Yellow River, China

2011 ◽  
Vol 347-353 ◽  
pp. 2413-2418
Author(s):  
Zhong Wei Huang ◽  
Shun Lin Tang ◽  
Jun Liu ◽  
Qiao Li Liu ◽  
Tao Wang
Keyword(s):  
Residence Time ◽  
Methyl Mercury ◽  
Total Mercury ◽  
Yellow River ◽  
Important Variable ◽  
Main Channel ◽  
Water Bodies ◽  
Mercury Accumulation ◽  
Water Residence Time ◽  
Xiaolangdi Reservoir

We conducted two campaigns to study total mercury (THg) and methyl mercury (MeHg) in water bodies of Xiaolangdi reservoir, which were constructed in 2001 and drained for desilification in early June every year. The first campaign was conducted in May 2010 and 7 sampling sites were selected from upstream to the dam. The second campaign was conducted in Nov. 2010 and 3 sampling sites were selected in Nov.2010. Our results showed that the average THg(30.5ng/L) concentration of water bodies in main channel of xiaolangdi reservoir was higher that of in tributary (19.3ng/L) and declined from upstream to downstream water body. Drainage of reservoir could decline mercury in water and water residence time was an important variable affecting mercury accumulation. The MeHg concentration had the same trend compared to THg from upstream to downstream water bodies. Mingzhudao, luoyu and dam water bodies were 0.045ng/L, 0.039ng/L and 0.037ng/L water bodies, respectively.

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