Wyniki wyszukiwania - BazTech

1

Policy Development of River Water Quality Governance Toward Land Use Dynamics Through a Risk Management Approach

Namara Idi, Hartono Djoko M., Latief Yusuf, Moersidik Setyo Sarwanto

Journal of Ecological Engineering

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2022

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Vol. 23, nr 2

25--33

EN

The Cisadane River, Tangerang City, is one of the most important rivers in Indonesia. This river provides raw water for Municipal Waterworks (PDAM) of the Tangerang City and Soekarno-Hatta International Airport, but the water quality tends to deteriorate due to pollution. The government has made various efforts to manage the river water quality, but no significant resolution was issued yet. The problem is becoming more complicated due to land-use changes that affect the pollutant load. Therefore, more precise, integrated, and comprehensive management is needed. This study used an approach with various methodologies according to the stages of the research, including; qualitative and quantitative analysis, GIS, statistics, risk management, and System Dynamic. The outcome of this research was the development of the policies in river water quality management, specifically land use manage-ment, separation of drainage channels from domestic sewage channels, enhancement of Wastewater Treatment Plant (WWTP) services coverage, as well as reinforcement of institutional and regulatory aspects, especially in funding commitments.

2

The Self-Purification Ability in the Rivers of Banjarmasin, Indonesia

Zubaidah Tien, Karnaningroem Nieke, Slamet Agus

Journal of Ecological Engineering

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2019

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Vol. 20, nr 2

177--182

EN

The self-purification capacity of river water is an essential indicator for a healthy river. Various organic and inorganic pollutants, both from point sources and nonpoint sources, in most streams in Banjarmasin were beyond the river self-purification capacity, which caused a decrease in the river water quality. This study attempted to identify the river water pollution distribution in the city of Banjarmasin and determined the self-purification points. We used the purposive sampling technique to carry out river water sampling, with criteria for pollutant sources and distance of pollution taken into consideration. By using the trend analysis techniques, we analyzed the parameters concentration to relate it to the range of pollution so that we were able to identify the pollution distribution and determine the self-purification distances. The results indicated that the self-purification process could take place on the river flow in of Banjarmasin even though it did not reach the clean water zone. The river in Banjarmasin requires a longer purification distance so that the self-purification process can run correctly.

3

Forms of organic and inorganic carbon in rivers water of the Vistula Basin

Dmitruk U., Dojlido J.

Environment Protection Engineering

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2001

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vol. 27, nr 1

35-48

EN

There is a growing interest in the measurement of organic C content in waters. Very often total organic C and dissolved organic C contents are measured. According to regulations adopted in various countries the values of TOC and DOC should be limited. After reviewing these regulations we propose to introduce the TOC parameter into Polish law. The information on the content of organic C in many surface waters of the world is given. The results of 1-yr measurements of IC, TOC, DOC and POC in such main Polish rivers as the Vistula, the Bug and the Narew are presented. The TOC is 6.1-23.2 mg C/dm3 and DOC is 4.6-20.6 mg C/dm3. POC is 0.1-9.9 mg C/dm3 and IC is 19.1-53.6 mg C/dm3. Correlations between BOD and TOC, COD and TOC, POC and SS are discussed. The highest values of organic C were measured in warm periods of the year.

PL

Ciągle rośnie zainteresowanie zawartością organicznego węgla w wodzie. Bardzo często mierzy się więc całkowite stężenie węgla organicznego i stężenie rozpuszczonego w wodzie węgla organicznego. Zgodnie z regulacjami prawnymi przyjętymi w różnych państwach należy ograniczyć zawartość całkowitego i rozpuszczonego węgla organicznego. Po dokonaniu przeglądu tych regulacji zaproponowano, aby do polskiego ustawodawstwa wprowadzić całkowitą zawartość węgla organicznego. W artykule poinformowano o zawartości węgla organicznego w wielu wodach powierzchniowych na świecie. Przedstawiono też wyniki jednorocznych pomiarów zawartości nieorganicznego węgla (19.1-53.6 mg C/dm3), całkowitego węgla organicznego (6.1-23.2 mg C/dm3), rozpuszczonego węgla organicznego (4.6-20.6 mg C/dm3) i pyłowego węgla organicznego (0.1-9.9 mg C/dm3) w takich polskich rzekach, jak: Wisła, Bug i Narew. Omówiono korelację między BZT a całkowitą zawartością węgla i CHZT oraz między całkowitą zawartością węgla organicznego a zawiesinami. Najwyższe stężenie organicznego węgla zmierzono w ciepłych porach roku.