scholarly journals WASTE DISPOSAL IN MARINE WATERS

2011 ◽  
Vol 1 (6) ◽  
pp. 36
Author(s):  
Donald W. Hood
Keyword(s):  
Waste Disposal ◽  
Diffusion Processes ◽  
Effective Means ◽  
Industrial Wastes ◽  
Marine Waters ◽  
Dilution Level

Waste disposal in marine waters is of importance to coastal engineers because of the ever-increasing requirements for an effective means of dilution of both municipal and industrial wastes. There are many considerations that enter into a satisfactory waste disposal method by dilution, but to the engineer two major considerations must be made. These are, first, the rate of diffusion and, second, the level of dilution necessary to effect disposal. These considerations become quite involved because of the varying conditions which influence dilution or diffusion processes and the uses of the water, which determines the criteria for a satisfactory dilution level. Thus, the dilution levels necessary will be dependent on the nature of the material and the area of dispersal.

Canning Waste Disposal INDUSTRIAL WASTES.

1953 ◽  
Vol 45 (8) ◽  
pp. 101A-103A
Author(s):  
Harold R. Murdock
Keyword(s):  
Waste Disposal ◽  
Industrial Wastes

scholarly journals Landfill Site Selection Using a Multi-Criteria Decision-Making Method: A Case Study of the Salafcheghan Special Economic Zone, Iran

2018 ◽  
Vol 10 (4) ◽  
pp. 1107 ◽  
Author(s):  
Hossein Yousefi ◽  
Zahra Javadzadeh ◽  
Younes Noorollahi ◽  
Amin Yousefi-Sahzabi
Keyword(s):  
Waste Disposal ◽  
Site Selection ◽  
Special Economic Zone ◽  
Industrial Wastes ◽  
Disposal Site ◽  
Residential Areas ◽  
Industrial Areas ◽  
Economic Zone ◽  
Influential Parameters

Sustainable waste management, particularly in industrial areas, is one of the major challenges of developing countries. Among the important issues in the overall process of industrial wastes management is the necessity of suitable site selection for waste disposal. Considering the effects that the disposal sites exert on their surrounding ecosystem and environment, these sites should be located in places with the minimum destructive effects and the lowest environmental impacts. The aim of this research is to outline important criteria for industrial zone waste disposal site selection and to select optimal and proper disposal sites in the Salafchegan special economic zone. This region, as one of the most important industrial areas and closest to the country’s political–economic center, enjoys a privileged and unique position for producing, exporting, and transiting goods and products. There are various parameters involved in the optimal selection of suitable industrial waste disposal sites. In this case study, issues such as the depth of groundwater, distance from surface- and groundwater, access routes, residential areas, industries, power transmission lines, flood-proneness, faults, slope, and distance from gardens and agricultural lands were taken into account. Following selection and preparation of the maps related to the influential parameters, assigning weights was done through the Analytical Hierarchy Process (AHP) and using expert comments. At this stage, the maps and weights related to them were introduced into an index overlay model to obtain new maps from combining the influential parameters. Thereafter, the areas with the first and second priorities were selected and out of each one, four sites were suggested for disposing of industrial wastes. The sites with the first and second priorities were specified as A1, A2, A3, and A4 and B1, B2, B3, and B4, respectively. The area, groundwater depth, distance from residential areas, distance from the Salafchegan special economic zone, the direction of the predominant wind, and the land use of the selected sites were also investigated.

scholarly journals Biotechnology of Rhodococcus for the production of valuable compounds

2020 ◽  
Vol 104 (20) ◽  
pp. 8567-8594 ◽  
Author(s):  
Martina Cappelletti ◽  
Alessandro Presentato ◽  
Elena Piacenza ◽  
Andrea Firrincieli ◽  
Raymond J. Turner ◽  
...  
Keyword(s):  
Waste Disposal ◽  
Low Cost ◽  
Value Added ◽  
Industrial Wastes ◽  
Bioactive Molecules ◽  
High Concentration ◽  
Metabolic Versatility ◽  
Wide Range ◽  
Valuable Compounds ◽  
Medical Relevance

Abstract Bacteria belonging to Rhodococcus genus represent ideal candidates for microbial biotechnology applications because of their metabolic versatility, ability to degrade a wide range of organic compounds, and resistance to various stress conditions, such as metal toxicity, desiccation, and high concentration of organic solvents. Rhodococcus spp. strains have also peculiar biosynthetic activities that contribute to their strong persistence in harsh and contaminated environments and provide them a competitive advantage over other microorganisms. This review is focused on the metabolic features of Rhodococcus genus and their potential use in biotechnology strategies for the production of compounds with environmental, industrial, and medical relevance such as biosurfactants, bioflocculants, carotenoids, triacylglycerols, polyhydroxyalkanoate, siderophores, antimicrobials, and metal-based nanostructures. These biosynthetic capacities can also be exploited to obtain high value-added products from low-cost substrates (industrial wastes and contaminants), offering the possibility to efficiently recover valuable resources and providing possible waste disposal solutions. Rhodococcus spp. strains have also recently been pointed out as a source of novel bioactive molecules highlighting the need to extend the knowledge on biosynthetic capacities of members of this genus and their potential utilization in the framework of bioeconomy. Key points • Rhodococcus possesses promising biosynthetic and bioconversion capacities. • Rhodococcus bioconversion capacities can provide waste disposal solutions. • Rhodococcus bioproducts have environmental, industrial, and medical relevance.

Hydrocarbon Biodegradation Using Agro-Industrial Wastes as Co-Substrates

2017 ◽  
pp. 155-185 ◽  
Author(s):  
Abdullah Mohammed El Mahdi ◽  
Hamidi Abdul Aziz
Keyword(s):  
Industrial Waste ◽  
Large Scale ◽  
Public Awareness ◽  
Effective Means ◽  
Industrial Wastes ◽  
Hydrocarbon Biodegradation ◽  
Scale Production ◽  
Microbial Biodegradation ◽  
Current Area ◽  
The Cost

The diversity of agro industrial wastes makes them an attractive group of organic wastes for potential use in a wide variety of industrial and biotechnological applications. The new stimulating development in this current area of research approaches in combination with the technologies of large-scale production and biotechnology engineering, agro industrial wastes will be economically successful materials of the future. Increased public awareness of issues related to hydrocarbon pollution strongly influences the development of technologies that speed up cleaning hazardous contaminants. The cost of biodegradation technology and the low bioavailability including mass transfer limitations of hydrocarbons, especially those recalcitrant components, from various mediums into the aqueous phase for effective enzyme-based microbial biodegradation still constitute major challenges. Sustainable replacement of traditional microbiological media with agroindustrial wastes as substrates for biosurfactant production holds great potential; thereby decrease numerous management problems of handling industrial waste. These organic nitrogen-rich nutrients (biostimulation) are an effective means to enhance the bioremediation process and widely available as wastes in the environment; hence, they can serve as “natural waste-to-environmental clean-up.” However, current chapter have focused on the combined use of biosurfactants and enzymes produced from renewable resources such as agro-industrial waste, through assisted biostimulation and bioaugmentation, for hydrocarbon biodegradation.

IV. Prevention and monitoring - Pollution prevention

1971 ◽  
Vol 177 (1048) ◽  
pp. 439-450 ◽  
Keyword(s):  
Waste Disposal ◽  
Marine Pollution ◽  
Pollution Prevention ◽  
Biological Characteristics ◽  
Marine Waters ◽  
Beneficial Effects ◽  
Management Policies ◽  
New Policies ◽  
Marine Waste ◽  
Policies And Practices

The magnitude, effects and trends of marine waste disposal compel the development and adoption of new policies and practices. Since most of the detrimental or beneficial effects are biological, the biological characteristics and uses of the sea provide the proper bases for decisions on the pollution and waste disposal which can be tolerated. Adequate judgement will require substantial increase in our comprehension of the physics, chemistry, and biology of the sea. Effectuation of such judgements may require equal improvement in our govern­mental structures for local, national and international control of pollution. Absolute limits will eventually be required for many types of marine waste disposal, if we are to retain the present biological uses of coastal and marine waters. At some date, prevention of each such pollution will be necessary. Therefore, research plans and management policies should be directed toward adequate preventive techniques. Several stimulating suggestions are noted for re-cycling of wastes, constructive utilization of such resources, and perhaps eventual prevention of marine pollution. The conclusion is presented that pollution must be prevented, at least from large centres of population and of industry, or present important and, in some cases, essential qualities and uses of the sea will be sacrificed over large areas.

The Study on Recovery Vehicle Scheduling Problem of Industrial Waste Recycling

2011 ◽  
Vol 120 ◽  
pp. 148-153
Author(s):  
Xiao Nan Zhang ◽  
Hou Ming Fan ◽  
Jia Shu Li
Keyword(s):  
Circular Economy ◽  
Industrial Waste ◽  
Effective Means ◽  
Waste Recycling ◽  
Vehicle Scheduling ◽  
Industrial Wastes ◽  
Scheduling Problem ◽  
Ant Colony Optimization Algorithm ◽  
Full Load ◽  
Industrial Parks

In recent years, china are paying attention to the development of the circular economy and the ecological industrial parks, industry, as the industry of the largest emissions of industrial waste, the circular economy is more concern by people. The recovery transport process of industrial waste recycling is the important part of the industrial circular economy, reasonable scheduling solution is the effective means to improve the recovery and processing speed of industrial wastes and make the cost of recycling lower. In this paper, through analysis and research the recovery transport links of industrial waste recycling, points out that the vehicle scheduling problem of industrial waste recycling is the scheduling problem combined full load with not-full load, and for this problem, build vehicle scheduling optimization model, use ant colony optimization algorithm to solve it, and that achieved good results.

Co-pyrolysis of rice straw with industrial wastes: Waste disposal and environmental remediation

2021 ◽  
pp. 0734242X2110270
Author(s):  
Yong-Deuk Seo ◽  
Tae-Cheol Seo ◽  
Seok-Young Oh
Keyword(s):  
Carbon Content ◽  
Rice Straw ◽  
Waste Disposal ◽  
Environmental Remediation ◽  
Industrial Wastes ◽  
Maximum Sorption Capacity ◽  
Sorption Ability ◽  
Maximum Sorption ◽  
Barium Chromate ◽  
Sulfur Containing

To reduce waste volumes and recover valuable products, char was synthesized via co-pyrolysis of rice straw (RS) with spent tires, sulfur wastes, and CO2. The inclusion of wastes and CO2 in pyrolysis of RS was hypothesized to enhance the sorption ability of char for various contaminants, including 2,4-dinitrotoluene (DNT), 2,4-dichlorophenol (DCP), lead, barium, chromate (CrO42−), and selenate (SeO42−). Using a lab-scale electrical furnace, the co-pyrolysis was conducted, and the soprtion capacity of char was evaluated via a series of batch sorption experiments. The maximum sorption capacity of spent tire–RS char for DNT was 16.8 ± 0.2 mg g−1, much higher than that of RS biochar (10.1 ± 0.3 mg g−1) due to increasing carbon content from the spent tires. The sorption of DCP to the spent tire–RS char was also enhanced via hydrophobic sorption to carbon residues, although not to the same degree of DNT due to deprotonation of the DCP. Compared with RS biochar, co-pyrolysis with raw sulfur wastes and CO2 enhanced sorption of lead, barium, and chromate, which can be attributed to increased cation and anion exchange capacities resulting from developments of oxygen or sulfur-containing functional groups. Sorption of selenate was strongly affected by pH. The results suggest that co-pyrolysis of agricultural and industrial wastes and CO2 is a promising option for the final waste disposal and the production of valuable char, which can be selectively customized for various types of contaminants as sorbents.

scholarly journals SOLUTIONS ON INTEGRATED DISPOSAL OF MANURE AND MUNICIPAL SOLID WASTES

2021 ◽  
pp. 111-116
Author(s):  
V.V. Sadov ◽  
◽  
N.I. Kapustin ◽  
Keyword(s):  
Waste Disposal ◽  
Organic Waste ◽  
Environmental Issues ◽  
Integrated Approach ◽  
Solid Wastes ◽  
Industrial Wastes ◽  
Organic Fertilizers ◽  
Municipal Solid Wastes ◽  
Adhesive Properties ◽  
Altai Region

Environmental issues around the world have become more acute in recent years. This is due to a significant in-crease in industrial wastes from various industries and waste of the population called municipal solid wastes. Re-cently, more attention has been paid to waste disposal issues, but still not enough. The main waste in animal hus-bandry is manure, and in population centers –municipal solid waste. The separation of manure and solid wastes into fractions not only increases the efficiency of using the area, but also leads to decreased transportation costs. The study of the wastes issue in the Altai Region has shown that there is a significant amount of unused manure as organic fertilizers and significant volumes of municipal solid wastes. The existing manure disposal technology provides for the removal of manure to the field or temporary storage on the farm that causes area contamination. There are various ways of organic waste disposal: thermal, biological, chemical, electrophysical, and mechanical ones, as well as their combinations. To solve this problem, an integrated approach is advisable -the use of the adhesive properties of cattle manure to bind municipal solid wastes and making briquettes from the resulting mixture. This method allows solving the ecologic problem both on the farm and near population centers. The results of the conducted experi-ments allow making conclusion that the fuel briquettes ob-tained in this way retain their shape and, in a dried state, support combustion. The technology of separating manure into fractions will significantly simplify the disposal of solid and liquid fractions.

scholarly journals Responsibility of Local Government Against Sea Pollution, Plastic Waste In Sea Waters, Sorong City

2018 ◽  
Vol 2 (1) ◽  
pp. 97-113
Author(s):  
Hotlan Samosir
Keyword(s):  
Local Government ◽  
Waste Management ◽  
Waste Disposal ◽  
Urban Areas ◽  
Organic Waste ◽  
Plastic Waste ◽  
Marine Ecology ◽  
Marine Waters ◽  
Waste Plastic ◽  
Final Disposal

This study aims to determine the impacts arising from the handling of waste (waste plastic) which is not effective in urban areas. Waste in urban areas that are not handled properly will be wasted into rivers and ends at sea. Increasing the amount of plastic waste in the marine waters of Sorong City can cause disruption to the convenience of sea users, especially for fishermen and tourists who aim to Raja Ampat regency. The wider impact due to increased waste of plastics in the marine waters of Sorong City is able to threaten the marine ecology. Pollution of marine waters of Sorong City is the responsibility of local government that is local government of Sorong City. Efforts to overcome the pollution can be done by streamlining waste management in urban areas by socializing the use of government-provided waste containers provided by local government with color variations to distinguish types of organic waste and non-organic waste and wet garbage. Adjustment needs to be made between the number of residents with the availability of waste disposal facilities and including the janitor so that the waste can be handled up to the landfill (Final Disposal Place).

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