scholarly journals Avaliação de nitrogênio e fósforo dos efluentes tratados dos abatedouros na cidade de Pelotas/RS

2016 ◽  
Vol 20 (1) ◽  
pp. 389
Author(s):  
Daniel Lucas Costa Rodrigues ◽  
Marcelo Peske Hartwig ◽  
Michel David Gerber
Keyword(s):  
Environmental Law ◽  
Economic Importance ◽  
Rio Grande Do Sul ◽  
Pollution Potential ◽  
Nitrogen And Phosphorus ◽  
Emission Standards ◽  
Great Economic Importance ◽  
High Pollution ◽  
Treated Effluents ◽  
Phosphorus Emission

The flesh agroindustrial sector is of great economic importance in Rio Grande do Sul, however this activity is also recognized by the high pollution potential. Considering the difficulties to fulfill the stringent nitrogen and phosphorus emission standards, this study aimed to assess the treated effluents of four slaughterhouses of the region of Pelotas/RS, relating them to the emission standards established by CONSEMA Resolution number 128/2006, after four years of the end of the period prescribed by law. All assessed companies fulfill the established discharge standard for phosphorus, but in relation to the KTN parameter, only 50% of the assessed companies fulfilled what is recommended by law, by concentration or by minimum removal efficiency. The results also indicated that two slaughterhouses must continue investing in the effluents treatment system to fulfill the applicable environmental law.

scholarly journals Indústrias de alto potencial poluidor no Rio Grande do Sul (Brasil): importância econômica e localização / Industries of high pollution potential in the state of Rio Grande do Sul (Brazil): economic importance and location

Redes ◽  
2016 ◽  
Vol 22 (1) ◽  
pp. 556
Author(s):  
Fernanda Queiroz Sperotto
Keyword(s):  
Secondary Data ◽  
Rio Grande ◽  
Economic Importance ◽  
The State ◽  
Future Research ◽  
Rio Grande Do Sul ◽  
Pollution Potential ◽  
High Pollution ◽  
Employment Data ◽  
Pollution Havens

Resumo O estudo examinou o fenômeno da especialização produtiva em atividades industriais de alto potencial poluidor-APP. Os objetivos da análise foram (a) avaliar, a partir de dados secundários, a importância atual das indústrias de APP para a economia do RS; e (b) mapear no território gaúcho essas indústrias, a fim de observar a concentração espacial dessas atividades. Para tanto, analisou-se dados de emprego, estabelecimentos, produção e exportação das atividades industriais de APP, no período de 2007 e 2014. Embora os resultados não tenham indicado mudanças substanciais ao longo desses oito anos, foi possível estabelecer um panorama do setor industrial de APP gaúcho, o qual servirá de base para pesquisas futuras sobre a formação de paraísos de poluição no RS. Abstract The study analyzed the phenomenon of productive specialization in industrial activities of high pollution potential-HPP. The objectives of the analysis were (a) to evaluate, from secondary data, the current importance of HPP industries for the State Rio Grande do Sul (RS/Brazil); and (b) to map in the territory these industries and to observe the spatial concentration of these activities. Therefore, it was analyzed employment data, establishments, production and export of industrial HPP activities, in the period 2007 and 2014. Although the results did not indicate substantial changes over these eight years, it was possible to establish an overview of the industry HPP in RS, which will form the basis for future research on the formation of pollution havens in RS.

Schwingungsüberlagertes Axialformen/Superimposed Oscillated Axial Forming

2020 ◽  
Vol 110 (11-12) ◽  
pp. 838-843
Author(s):  
Philipp Müller ◽  
Bernd-Arno Behrens ◽  
Sven Hübner ◽  
Hendrik Vogt ◽  
Daniel Rosenbusch ◽  
...  
Keyword(s):  
Surface Quality ◽  
Economic Importance ◽  
Combined Effect ◽  
Wird Eine ◽  
Forming Force ◽  
Forming Process ◽  
Forming Technology ◽  
Great Economic Importance ◽  
Gear Geometry

Techniken zur Steigerung der Formgebungsgrenzen in der Umformtechnik sind von hoher wirtschaftlicher Bedeutung. In dieser Arbeit wird eine Schwingungsüberlagerung im Krafthauptfluss eines Axialformprozesses zur Ausprägung einer Verzahnungsgeometrie untersucht. Die Auswirkungen der Schwingung auf die erzielbare Ausfüllung der Zahnkavitäten werden analysiert sowie die Parameter Schmierung und Oberflächengüte der Halbzeuge in ihrer kombinierten Wirkung untersucht. Es konnte eine Reduzierung der mittleren Umformkraft sowie eine Erhöhung der Formfüllung festgestellt werden. Techniques for extending the production limits in forming technology are of great economic importance. In this research, a superimposed oscillation in the main force flow of an axial forming process to form an axial gear geometry is investigated. The effects of the superimposed oscillation on the achievable form-filling of the tooth cavities are analyzed and the parameters lubrication and surface quality of the semi-finished products are investigated in their combined effect. A reduction of the averaged forming force as well as an increase of the form-filling could be achieved.

Illustrated guide to Pentatominae (Hemiptera: Pentatomidae) species associated with the four main grain crops in Rio Grande do Sul state, Brazil

Zootaxa ◽  
2021 ◽  
Vol 4958 (1) ◽  
pp. 430-478
Author(s):  
LURDIANA D. BARROS ◽  
MARCELO R. PAIM ◽  
VERÔNICA KREIN ◽  
VICTOR CARABAJAL ◽  
MARCELA N. BRANDÃO ◽  
...  
Keyword(s):  
Species Distribution ◽  
New Records ◽  
Species Recognition ◽  
Rio Grande ◽  
Economic Importance ◽  
Stink Bugs ◽  
Rio Grande Do Sul ◽  
Distribution Maps ◽  
Grain Crops ◽  
Scientific Collections

Several stink bugs in the subfamily Pentatominae are crop pests or have the potential to damage plants of economic importance. In the Brazilian state of Rio Grande do Sul, where agriculture plays a major role in the economy, the knowledge about pest stink bugs is fragmented and, in some instances, outdated. This work provides a summary of Pentatominae species recorded in Rio Grande do Sul feeding on the four most important grain crops for the state, i.e. soybean, rice, maize, and wheat, plus canola, an emerging crop. This survey is enhanced with new records from scientific collections, a short diagnosis for each species, distribution maps, an identification key, and carefully illustrated to allow for species recognition in the field. With this work, we aim to reunite the scattered knowledge of the group in one single revision, and provide a useful tool for identifying the pest stink bugs of Rio Grande do Sul. 

scholarly journals Long-term changes in nitrogen and phosphorus emission into the Vistula and Oder catchments (Poland)—modeling (MONERIS) studies

2018 ◽  
Vol 25 (29) ◽  
pp. 29734-29751 ◽  
Author(s):  
Marianna Pastuszak ◽  
Tomasz Kowalkowski ◽  
Jerzy Kopiński ◽  
Andrzej Doroszewski ◽  
Beata Jurga ◽  
...  
Keyword(s):  
Nitrogen And Phosphorus ◽  
Long Term Changes ◽  
Phosphorus Emission

scholarly journals Contributions to the Knowledge of Synanthropic Flora from The Pitesti Area

1970 ◽  
Vol 66 (1) ◽  
Author(s):  
Marin ANDREI ◽  
Marinela Roxana ROŞESCU
Keyword(s):  
Dry Matter ◽  
Economic Importance ◽  
Matter Content ◽  
Pollution Level ◽  
Dry Matter Content ◽  
Nitrogen And Phosphorus ◽  
Lactuca Serriola ◽  
Synanthropic Species ◽  
Species Characteristics ◽  
Erigeron Annuus

The research of the synanthropic plant species characteristics from the urban environment offers information about their relation with the anthropic environment, on one hand, and on the other hand, they can be used as indicators of the pollution level. The research was performed in the city of Pitesti from June 2008 to may 2009, to compile an inventory of the flora, to establish the biological and ecological spectrum, the phytogeographic elements and their economic importance. The fresh above ground phytomass of the synanthropic species from 22 sample locations, was determined. The dry matter, the total nitrogen and phosphorus content, for six species of the dominant synanthropic plants, were also determined. It was identified 214 species of 38 families. The biological and ecological spectra show the high percentages of hemicryptophytes (35%), eutrophic species (54%), xeromesophilous-mesophilous species (29%) as well as eurytherm (20%) and euryacide species. The phytogeographic spectrum shows a high number of species from Eurasia (96 species). From the total number of identified species, 54% are polyploid and 27% present economic importance. It was found that the phytomass from stationaries varies between 281.7 g m-2 and 21.5 g m-2, for a number of 35 species. The highest dry matter content (64.01%) was recorded in Conyza canadensis, the highest value of N (8,200 ppm) in Lactuca serriola and the highest total P content (301.5 ppm) in Erigeron annuus. The results enable us to estimate the value of the synanthropic plants as ecologic indicators in the Pitesti area.

scholarly journals Fishery regulamentation or ethnoknowledge? The dilemma of the management of the mapará fisheries on the lower Tocantins river in northern Brazil

2021 ◽  
Vol 10 (11) ◽  
pp. e131101118963
Author(s):  
Esther Mirian Cardoso ◽  
Paulo Allison Costa da Mata ◽  
Matheus dos Santos Souza ◽  
Maria Clara Pinheiro de Souza ◽  
Victoria Isaac
Keyword(s):  
Socioeconomic Development ◽  
Economic Importance ◽  
Chi Square ◽  
Great Economic Importance ◽  
Chi Square Test ◽  
Northern Brazil ◽  
The Mean ◽  
Tocantins River ◽  
Student’S T ◽  
Student’S T Test

The fishery of mapará (Hypophthalmus marginatus) is of great economic importance in the Amazon region. Despite this, it is observed that the current norms of management disagree with the ethnoknowledge of fishermen of the Tocantins river. Therefore, there are many seizures and fines in the Tocantins Low region. This work appeared as a demand of the fishermen of the region and had as purpose to test the pertinence of the fishing legislation on the capture of the species and to provide subsidies for the adaptation of the norms to the local reality. For this, a mapará fishery was taken on the Pindobal Grande river, in the municipality of Igarapé-Miri, in the state of Pará. A sample of the captured individuals was collected, and identification, sexing and biometry were done. Fishing was described, and the sex ratio tested with the Chi-Square test and the mean length differences between the sexes with the Student's t-test. The results were compared with current legislation and literature data. The captured mapará individuals were mostly above 30 cm, as determined by legislation. It is concluded that, despite using a network that is prohibited, the capture of the species in the region acts selectively, due to the ethno-cognition and the fisherman's action ("taleiro"). Therefore, it is necessary that the legislation be revised, seeking the reconciliation between the conservation of ecosystems, the traditional knowledge and the socioeconomic development of the region.

scholarly journals Nitrate Pollution of Groundwater Based on GIS in the City of Daloa, West-central Cote d Ivoire

2019 ◽  
Vol 70 (7) ◽  
pp. 2579-2583 ◽  
Author(s):  
Sampah Georges Eblin ◽  
Kouakou Seraphin Konan ◽  
Oi Mangoua Jules Mangoua ◽  
Valentin Nedeff ◽  
Andrei Victor Sandu ◽  
...  
Keyword(s):  
Health Risk ◽  
Tap Water ◽  
Nitrate Pollution ◽  
Pollution Potential ◽  
Shallow Aquifers ◽  
West Central ◽  
Nitrate Concentrations ◽  
High Pollution ◽  
The City

Doubt about the quality of tap water, due to its color, taste and unpleasant odors, forces a large part of the population of the city of Daloa (west-central of Cote d�Ivoire) to turn to spring and traditional wells waters whose quality is unknown. This study aims to assess the level of nitrate pollution of these shallow aquifers through 29 points including 9 spring and 20 traditional wells spread all over the city. Nitrate concentrations range from 2.5 mg/L to 301.1 mg/L, with 30% of the wells containing an excess of nitrate, beyond the WHO drinking standard (50 mg/L). The map of levels of nitrate concentrations in the city�s wells and springs shows the exposure of the populations of the old downtown neighborhoods to a high health risk due to the high pollution potential of nitrate in the water.

scholarly journals CONHECENDO A PESCA ARTESANAL EM TRAMANDAÍ E IMBÉ – RS: DISTRIBUIÇÃO ESPACIAL E DESAFIOS

2017 ◽  
Vol 39 (2) ◽  
pp. 341
Author(s):  
Abraão Martins Terceiro
Keyword(s):  
Spatial Distribution ◽  
Rio Grande ◽  
Economic Importance ◽  
The State ◽  
Artisanal Fisheries ◽  
Rio Grande Do Sul ◽  
Popular Knowledge

The work deals with the theme artisanal fisheries and has as main objective, the characterization of the activity in the municipalities of Tramandaí and Imbé, located in the State of Rio Grande do Sul, the spatial distribution and the challenges to occur fisheries in this region. The research is justified by the large number of fishermen in the study area and the economic importance of the activity, mapping through popular knowledge areas of greatest value for fishing, the main existing species and the main features and instruments used in fish capture.

Engineering Meteorology: The Weathering of Exposed Surfaces by Atmospheric Pollution 1

1959 ◽  
Vol 40 (4) ◽  
pp. 172-178
Author(s):  
R. E. Munn
Keyword(s):  
Air Pollution ◽  
Atmospheric Pollution ◽  
Industrial Area ◽  
Economic Importance ◽  
Economic Costs ◽  
Community Surveys ◽  
Corrosion Tests ◽  
Great Economic Importance ◽  
Dry Climates ◽  
And Control

The topic is approached from the viewpoint of community air-pollution programs and control. After a brief discussion of the economic costs of atmospheric pollution in an industrial area, a skeleton outline of the important factors in weathering by pollutants is presented. A few of the factors are considered in detail under the general headings of soiling, erosion, and corrosion. Significant differences in weathering are found for industrial, rural, marine, and very dry climates. Most community surveys include routine tests of the dirtiness of the air but exclude corrosion tests, although this factor is of great economic importance. Methods of corrosion testing are considered, and it is concluded that they are not feasible yet for community surveys. Increasing interest in corrosion, however, is undoubtedly leading to a broader understanding of the problem.

The Importance of Liming Acid Soils of the Sahel Regions of Africa to Sustain High Crop Productivity—a Case Study from the Republic of Cameroon

1992 ◽  
Vol 28 (4) ◽  
pp. 473-476 ◽  
Author(s):  
K. P. Prabhakaran Nair ◽  
V. Ngachie ◽  
F. Nzetchoung
Keyword(s):  
Arachis Hypogaea ◽  
Acid Soils ◽  
Crop Productivity ◽  
Economic Importance ◽  
Great Economic Importance ◽  
Pot Experiments ◽  
The Republic ◽  
Limed Soil

SUMMARYGroundnut (Arachis hypogaea) has very great economic importance in Cameroon. In pot experiments, groundnut yields on highly acidified but limed soil were 50% greater than those on unlimed soil. These results demonstrate that severely acidified soils of the western highlands of Cameroon should be limed at moderate rates to sustain crop productivity.

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