Soil removal

In this study, the effectiveness of local soils collected from the Tri An Reservoir (TAR) lakeside in the removal of cyanobacteria Microcystis aeruginosa was investigated. The organic matter content and clay mineral were characterized and used for the experiment.

8p viberkshire 09-08-2023 3 3   Download

A study on effects of water submergence depth on the formation of tuberization Eleocharis ochrostachys Steud. in experimental conditions at level of soil moisture 45 - 50%, 80 - 100% and the submerged depth of the water is 5 cm, 10 cm, 15 cm and 20 cm (with experiment depth of the water 20 cm, and then lowered the water level, remove water periodically every 15 days down to 5 cm until the water level is no longer submerged and then watered with moisture, soil moisture 80-100 %) was conducted to study tuberization Eleocharis ochrostachys Steud.

14p vimegwhitman 10-06-2022 12 1   Download

The results indicated that the vegetation set achieved 90% of Imidacloprid removal efficiency while the control set (only soil media) removed Imidacloprid at a range between 64.9 to 65.9%. Furthermore, the vegetation set with additives also resulted in the increment of Dissolved Oxygen (DO) with about 16% and pH increment between 2 to 11% for all treatment train sets with a better water quality improvement.

10p thebadguys 15-01-2022 18 0   Download

The sorption isotherms were best described by the Freundlich model rather than Langmuir or linear models. We determined that using wood fibre in constructed wetlands would require around 35–66% less area to remove the selected micropollutants, compared to soil as matrix. Thus our results show the potential of using hydroponic substrata such as wood - and coconut fibre to both remove micropollutants in, and reduce the footprint of constructed wetlands.

10p thebadguys 15-01-2022 14 0   Download

The degradation characteristics of phenanthrene (Phe), pyrene (Pyr) and benzo[a]pyrene (BaP) in freeze-thawed soil by both co-immobilized and free microorganism were studied. The removal rate of Phe, Pyr and BaP using the co-immobilized fungal-bacterial consortium within 60 d was 59.2±3.7%, 46.6±3.3%, and 36.8±2.7%, respectively, which was obviously higher than that of free fungal-bacterial consortium in the same time.

10p thebadguys 15-01-2022 10 0   Download

A field experiment was carried out at Department of Agronomy, Anbil Dharmalingam Agricultural College and Research Institute, Trichy during Rabi, 2018 to study the effect of different weed management practices on nutrient removal, nutrient uptake andgrain yield of transplanted rice. The experiment was laid out in split plot design with four main plot and five sub plot treatments and replicated thrice. The experimental plot size was 20 m 2 . Main plot treatments were pre plant application of herbicides namely, glyphosate 2.5 kg ha-1 , glufosinate ammonium 1.0 kg ha-1 ,halosulfuron methyl 67.

12p chauchaungayxua12 29-07-2021 14 1   Download

Soil salinity is a critical threat to global agriculture. In plants, the accumulation of xanthine activates xanthine dehydrogenase (XDH), which catalyses the oxidation/conversion of xanthine to uric acid to remove excess reactive oxygen species (ROS).

14p vijichea2711 28-05-2021 7 1   Download

Soil and water pollution due to nitrate are becoming increasingly serious worldwide. The government also put forward relevant governance policies, and a large number of scholars studied chemical physics and other methods to remove nitrate in water, but the cost was substantial.

12p vijichea2711 28-05-2021 18 1   Download

The present study deals with the degradation of Reactive black GDN by different bacterial cultures isolated from a contaminated site. Amongst 5 cultures, the isolate 4 displayed 96% decolourisation of Reactive black GDN (100 mgl-1 ) in 24h to 72 h. The colour removal efficiency of the isolate was further improved by optimizing various parameters. The decolourisation of the dye was 1.9 times higher under static as compared to shaking condition. The pH 7.0 and 37oC temperature were found to be optimum for the decolourisation of the dye.

13p trinhthamhodang11 27-04-2021 16 1   Download

The aim of research: Determination of greywater characteristics from some buildings in Hanoi city; Explaination of the principle of removing the main pollutants out of greywater by using laterite with multi soil layering engineering; Determination of decomposition rate coefficients of BOD5, COD and NH4 + -N. The number of laterite layer is calculated based on these coefficients; Successful greywater treatment from building by using laterite with Multi Soil Layering engineering and the treated effluent meet up the National Regulations

27p dolphintaletale 23-04-2021 16 7   Download

Mining, industrial processing, smelting and other industrial activities produce waste waters having toxic levels of Cu which have potential to contaminate natural water and soils. The present study focuses on the removal of Cu(II) from synthetic waste water containing Cu levels in the range of 15.9 to 143 mg L-1 onto Pine needle biochars prepared by pyrolysis at 300 (P300) and 450○ C (P450).

10p chauchaungayxua11 23-03-2021 11 1   Download

An experiment was conducted to study the effect of surface soil removal and organic amendment on soil properties cultivating sesame (Sesamum indicum L.) during Kharif 2018. A split plot with three replications was designed. Surface soil removal of 0 (control), 5 and 10 cm designated as D0, D1 and D2 were carried out, respectively. The addition of different organic amendments was adopted vis, O0- control, O1- vermicompost @ 3 tonnes ha-1 , O2- poultry litter @ 3 tonnes ha-1 and O3- pig manure @ 3 tonnes ha-1 .

8p chauchaungayxua10 18-03-2021 11 2   Download

Weeding is one of the major control operations in the vegetable crops. The traditional method of weed control is to remove the weed manually by a Khurpi or Spade. This is a very time consuming process. Due to shortage of agricultural labour in peak season, farmers cannot compete weeding in time. Mechanical weeding keeps the soil surface loose, which results in better aeration and moisture conservation. In our country the average land is about 0.

8p trinhthamhodang1218 26-02-2021 11 1   Download

The microorganisms have been introduced to describe the process of using biological agents to remove toxic contamination from agricultural lands. Microorganisms are the most effective management tool to manage the polluted environment and recover contaminated soil. The hazardous wastes generated from the chemical processes/operations are being treated using biological methods by meet the prescribed standard as per the Environmental Protection Act, 1986.

16p cothumenhmong9 18-01-2021 17 1   Download

The continuous use or excess supply of inorganic fertilizers as source of nutrient in imbalanced proportion is also a problem, causing economic inefficiency, damage to the environment and in certain situations, harm the plants themselves and also to human being who consume them. On the other hand, increase in productivity of horticultural produce removes large amounts of essential nutrients from the soil. Without proper management, continuous production of crops reduces nutrient reserves in the soil.

9p quenchua8 29-09-2020 13 1   Download

Neonicotinoid insecticides are widely used nowadays to control many sucking insect-pests in several horticultural crops. They are neurotoxic and systemic in nature and their indiscriminate use may affect both target as well as beneficial insects. They are persistent insecticides and can enter food chain through soil application because of high water solubility. Microbes play an important role in removing toxic insecticides from soil environment and microbial degradation can be considered to be a cost effective mechanism to detoxify the insecticides.

23p kethamoi7 26-08-2020 16 2   Download

The major challenge lies in feeding the overly populated country which creates more dependency on the use of fertilizers, pesticides, fungicides, and manures etc., to increase the crop yields. Use of agro chemicals coupled with waste water irrigation has resulted in rapid deterioration of soil quality due to over accumulation of heavy metals which are non degradable and persist for longer time in soils.

16p nguaconbaynhay7 15-08-2020 14 1   Download

The presence of organic sulfur-containing oil in the environment is harmful to animals and human health. The combustion of these compounds in fossil fuels tends to release sulfur dioxide in the atmosphere, which leads to acid rain, corrosion, damage to crops, and an array of other problems. The process of biodesulfurization rationally exploits the ability of certain microorganisms in the removal of sulfur prior to fuel burning, without loss of calorific value.

17p angicungduoc6 20-07-2020 13 1   Download

The study was carried out during 2013-14 in Meerut district of Uttar Pradesh state to focus on the sugarcane growers regarding impact of knowledge on adoption level of IPM practices. The 80 contact farmers were selected as respondents. The study revealed that the maximum knowledge gap was found to be existing in previous crop residues, crop rotation, hand picking of the insect and their destruction, hot air and water treatment, light and pheromone trap, microbial control, use of natural enemies, resistant varieties, biopesticides/ bio-agents, application and dose of different pest etc.

7p chauchaungayxua6 26-06-2020 15 1   Download

In recent times river pollution is a serious and growing problem in most developing countries. Industrial effluents and sewage entering the water bodies are one of the major sources of environmental toxicity, which endangers aquatic biota and deteriorates water quality. Biological methods for the removal of heavy metals from industrial waste may provide an attractive alternative to the physiochemical process. Biosurfactants are one of the compounds that help in alleviating the heavy metals.

10p chauchaungayxua6 26-06-2020 21 0   Download