scholarly journals Determinasi Kandungan Kadmium (Cd) Di Perairan Pantai Malalayang Sekitar Rumah Sakit Prof Kandou Manado

2019 ◽  
Vol 3 (1) ◽  
Author(s):  
Hulda Mamoribo ◽  
Robert J Rompas ◽  
Ockstan J Kalesaran

This research was conducted by purposive random sampling method with 3 points. Data were analyzed descriptively by comparing the environmental quality standard based on the Ministry of Environment No. 51. 2004. Results of laboratory analysis was the content of Cadmium (Cd) was still below the allowable threshold. Compared to Cd content of fresh water which was 0.0002 mg/L, the Cd content found in this research was lower that was 0.0001 mg/ L.   Keywords: Kadmium (Cd), Logam berat, Baku Mutu, Pantai Malalayang, RS Prof Kandou.

1984 ◽  
Vol 16 (5-7) ◽  
pp. 159-169 ◽  
Author(s):  
G Mance ◽  
A R O'Donnell

This paper discusses the environmental quality objective (EQO) approach to water quality management and defines the terms EQO and environmental quality standard (EQS). The proposed list of water uses is presented. The derivation of EQSs for each use is discussed and the EQS values proposed for six list II substances are reported. The relevence of these values, and problems associated with the control of individual substances, are discussed in relation to current practice.


2018 ◽  
Vol 67 ◽  
pp. 04006 ◽  
Author(s):  
Irfan Aditya ◽  
Sutrasno Kartohardjono

Wastewater generated from the tofu industry usually still contains high organic pollutants that can contaminate the surface water. Therefore, it should be treated properly before it can be disposed to the environment. This study aims to evaluate the combination of coagulationflocculation and ultrafiltration methods in treating the wastewater from tofu industry. Based on the preliminary tests, the wastewater from tofu industry have pH, total dissolved solid (TDS), total suspended solid (TSS), turbidity and chemical oxygen demand (COD) of 3.4, 870 - 1080 mg/L, 370 mg/L, 446 FAU and 7954 mg/L, respectively. The coagulant and membrane used in this study were Poly aluminum chloride (PAC) and the ceramic membrane, respectively. Experimental results showed that the best pH for coagulation-flocculation process is at pH of 7.0, and this pH was then used for ultrafiltration process. The flux of the ultrafiltration membrane increased with increasing the trans membrane pressure due to increasing driving force. The observed parameters such as TSS and turbidity of wastewater decreased drastically after experiencing ultrafiltration process and met the National Environmental Quality Standard. However, the COD of water produced in the ultrafiltration process was still high and did not meet the National Environmental Quality Standard.


2012 ◽  
Vol 518-523 ◽  
pp. 2366-2369
Author(s):  
Qun Ying Zhao ◽  
Yu Shu Wang ◽  
Xiao Li Fan

The characteristic of coal mine wastewater was introduced. Engineering design and practical run of circulator clarifier +gravity valve-less were summed up for treating wastewater of coal mine. Practice indicated that the process was steady and reliable, the effluent satisfied water quality Ⅲ standard of Surface Water Environmental Quality Standard (GB3838-2002),and there was remarkable economic results during the process of sewage treatment.


2016 ◽  
Author(s):  
Monica Nordberg ◽  
Douglas M. Templeton ◽  
Ole Andersen ◽  
John H. Duffus

2019 ◽  
Vol 6 (4) ◽  
pp. 368
Author(s):  
Rizky Eko Prasetyo ◽  
Wuryaningsih Dwi Sayekti ◽  
Eka Kasymir

This study aims to investigate attributes of tempeh desired by consumer households, consumers satisfaction levels on tempeh, the pattern of tempeh demand, and factors affecting tempeh demand in Bandar Lampung City. This study is conducted in Bandar Lampung City. Data is collected in December 2016 to February 2017. The population in this study is household in Bandar Lampung City. The samples employed in this study are 75 households chosen by multistage random sampling method. The results showed that tempeh attributes  wanted by consumer households were cheap price, good taste, unique looks, good packaging, hygienic tempeh, quality standard, containing good nutrients, and accesibility location to purchase tempeh. Consumer households in Bandar Lampung City were satisfied by tempeh products. Tempeh demand patterns by consumer households in Bandar Lampung City were as follows: the average of tempeh purchases by household was 1,600 grams per week and the average of purchase frequency was 1.72 times per week. The total of tempeh consumption was 66.67 percent processed by frying, mostly be purchased at the market. Affecting factors on tempeh demand were price of tempeh, vegetable oil, wheat flour, and eggs.Key words: demand, consumer satisfaction, tempeh


2020 ◽  
Vol 28 (2) ◽  
pp. 1789-1800
Author(s):  
Graham Merrington ◽  
Adam Peters ◽  
Iain Wilson ◽  
Chris Cooper ◽  
Frank Van Assche ◽  
...  

2014 ◽  
Vol 926-930 ◽  
pp. 4218-4221
Author(s):  
Ming Chang Li ◽  
Ying Jie Zhao ◽  
Ying Wang

The analysis of marine environmental quality is an essential tool for grasping the domain environmental situation. The analysis of marine pollution source could be guide the environmental management and refine the management target. So this research is meaningful for the environmental management. In this paper, the environmental quality and pollution source are analyzed in the Beidaihe nearshore district, Tangshan Bay. The environmental quality standard of the Beidaihe nearshore district is the first level. The land pollution analysis shows that the discharge of Luanhe river has a main influence for the Beidaihe nearshore district.


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