Water treatment

This study evaluated the impact of pollution sources on the Ma River Basin in Son La Province, Vietnam, using data from local reports, statistical yearbooks, and scholarly literature. The study recommended implementing centralized wastewater treatment systems in priority areas, promoting sustainable land management practices, and supporting environmentally friendly agricultural and livestock farming methods.

14p tuetuebinhan000 23-01-2025 3 2   Download

The main aim of this research is to develop a viable solution to treat and reuse car wash wastewater. To do so, two treatment systems were evaluated. The first treatment system comprised of coagulation-flocculation and ceramic ultrafiltration membrane and reverse osmosis and the second treatment system is enhanced membrane bioreactor (eMBR).

201p runthenight04 02-02-2023 10 3   Download

The purpose of this research was to investigate the technological feasibility of biological filtration process for Mn control in Lorne WTP. This thesis consists of eight chapters. Project background and research objectives are described in Chapter 1. Chapter 2 presents an extensive literature review covering the nature of manganese, manganese analytical methods, manganese control methods, the nature of MOB and biological control of Mn in drinking water treatment. The materials and methods used throughout the experimental investigation for this study are described in Chapter 3.

119p runthenight04 02-02-2023 11 3   Download

Overall objectives: Research and propose the solutions to treat straw in the field so that reducing on-field rice straw burning and improving the soil properties in intensive rice soil.

25p guitaracoustic02 08-12-2021 23 3   Download

Objectives of the study: Assessing the situation of catfish farming in some areas of the Mekong Delta as a basis for proposing measures to manage waste from catfish ponds; the survey and analysis in catfish ponds to assess the composition and characteristics; assessing the pollutants load of waste water from catfish ponds; assessing the possibility of wastewater treatment from catfish ponds and benefits of environmental when using wastewater for irrigating paddy fields.

26p beloveinhouse10 28-11-2021 23 3   Download

The research goals of the thesis: Preparation and characterization of activated carbon products denaturated by surface oxidation technics. Determination of cation exchange capacity of the materials. Investigation of Mn and Fe linking on surface of prepared materials to form a new adsorption material for effective removing hazard anions in water environment.

26p extraenglish 24-05-2021 30 2   Download

The research objectives of the thesi: Manufacturing biochar (BC) and activated carbon from coffee husk; Fabrication of biochar/activated carbon composite materials from coffee husk and MnFe2O4 nanomaterials to treat Cr(VI) and Ni(II) ions in water. Clarifying adsorption mechanism and heavy metal ion adsorption model on VLHP from coffee husk.

26p extraenglish 24-05-2021 24 3   Download

Summary of Environmental engineering doctoral thesis: Investigation of activated carbon denaturation in order to create material for treatment of several hazard ions in water environment

26p capheviahe27 23-02-2021 28 6   Download

This thesis focuses on simulating the internal circulation process (gas pulling water) to determine: The amount of water (QN) was pulled up by the amount of gas (QK); and mixing ability of generated gas and circulating water flow, from which to calculate the periodic structure in the IC system.

27p capheviahe26 25-01-2021 24 4   Download

Green engineering investigated as a possible organic green material in the combustion process and heating applications. A bioreactor system processed Dendrocalamus asper bamboo culms as green engineering materials to theto industrial process that produces valuable elements from a natural treatment by soaking with an average of pH 7.6 level of sea-water.

9p lucastanguyen 01-06-2020 16 2   Download

A series of blends consisting of Red mud(RM) varying from 1.5 to 3 g and Graphene oxide(GO) varying from 0 to 1.5 g to give a total of 3g were prepared.

10p lucastanguyen 01-06-2020 9 3   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 23 3   Download

Alkaline pulping liquors are the problematic for environment due to their toxicity and poor biodegradability. During last decade, anaerobic treatment technology has been successfully applied to various types of pulp and paper industry effluents. In the present study, the treatment of highly toxic pulping liquors in lab-scale has been done using sulfate reducing bacteria (SRB) isolated from sediment samples of pulp and paper mills in Vietnam. This treatment could reduce 70 - 75% of COD after three weeks. The COD removal could achieve 82 - 88% by subsequent aerobic treatment in 48 hours.

7p 12120609 01-06-2020 8 1   Download

The objective of research is to build CNST using TVTS to treat pig waste water after microbiological treatment, to minimize environmental pollution. Technology is feasible when applied in practice.

27p xacxuoc4321 11-07-2019 38 3   Download

Objectives of research: Research on ammonia removal in groundwater in Hanoi with the concentration of less than 25mg/L (20mgN/L) by simultaneous Nitrification and Denitrification process in the equipment using MBBR with porous carriers (DHY) of a high surface area of about 6,000-8,000 m2 /m3 , high porosity and light weight, easily moving in water without addition of substrates.

26p xacxuoc4321 09-07-2019 27 6   Download

Objectives of thesis: Study on phenol treatment in water by ozonation process combined with catalysts. An empirical kinetic model and one quadratic regression equations were built based on experimental data for destroying phenol by heterogeneous catalytic ozonation process with response variables (initial pH, ozone concentration, catalyst concentration and reaction time). Application of phenol treatment in coking wastewater.

29p xacxuoc4321 08-07-2019 20 4   Download

Effect of fertilizer application on peanut yield in spring season on non irrigated paddy land in Quang Binh district, Ha Giang province Experiment has carried out in Quang Binh district, Ha Giang province where 25% of paddy land cannot access to water irrigation in spring season. The objective of field experiment is to improve peanut yield through fertilization. The field experiment has set up with 10 treatments, of which 9 treatments have formularized by three levels of phosphorous

5p shop_123 09-05-2013 60 8   Download

The primary structures of N-terminal 19-mer peptides, released by limited trypsin treatment of coat protein (CP) subunits in intact virions of three potato virus X (PVX) isolates, were analyzed. Twowild-type PVXstrains,Russian (Ru) andBritish (UK3),wereusedandalso theSTmutantof UK3 inwhich all 12 serine and threonine residues in the CP N-terminal segment were replaced by glycine or alanine.

10p awards 05-04-2013 47 3   Download

Research Reports IWMI’s mission is to improve the management of land and water resources for food, livelihoods and environment. In serving this mission, IWMI concentrates on the integration of policies, technologies and management systems to achieve workable solutions to real problems—practical, relevant results in the field of irrigation and water and land resources.

39p nhatro75 12-07-2012 72 8   Download

In early October 2010, two severe floods in a row (from 1st to 6th Oct and from October 14 to 18) occurred in five central provinces, including Nghe An, Ha Tinh, Quang Binh, Quang Tri and Thua Thien Hue. Ha Tinh is where The most serious damage, including Huong Khe and Vu Quang, poor districts of Ha Tinh province, very serious damage. Flooding to people, was poor become poorer and very much influenced their lives, the daily activities and production.

56p duahau123456 12-08-2011 85 15   Download