The laboratory is one of the units that produce liquid waste which in addition to having infectious properties is also toxic, which if not managed properly will have the potential to damage the ernvironment and living things. Laboratory wastewater treatment is important because the treament and procurement of WWTPs that meet the requirements are very high cost, therefore it is neceessary to do research to find a simple but effective liquid waste treatment technology to reduce the level of liquid waste parameters, easy to make, using local materials, and the price is affordable. This study aims to determine the performance of sandston/gravel media, fly ash, vetiver (Vetiveria Zizanoides L), and the third mixture in reducing chromium content in laboratory wastewater by applying adsorption and phytoremediatioon methods. The liquid waste used is artificial waste made of Potassium Dichromate with a concentration of 15 mg/L. This research was conducted on a laboratory scale, using beaker. Adsorption experiments were carried out on fly ash and gravel media with weight variations of 20 g (2% w/v), 30 g (3% w/v) and 50 g (5% w/v). Phytoremediation experiments were carried out on vetiver (Vetiveria Zizanoides L) with variations in plant weight, namely 70 g (2% w/v), 170 g (3% w/v) and 200 g (5% w/v), while fro adsorption experiments the mixture of gravel and fly ash was carried our with variatons in weight of 40 g (2% w/v), 60 g (3% w/v) and 100 g (5% w/v) with ration of 1:1, respectively. The mixture of gravel, fly ash and plants was carried out in a ratio of 1:1:1 with a weight of 100 g each. Observations were made on chromium levels on day 1 and 15. The results showed that the removal of chromium levels in each adsorption experiment using gravel was an average of 0,32 mg/L, whilae adsorption using fly ash average 1.58 mg/L; 10.135 for fly ash; 2.00% for gravel, and 24.16% for vetiver. The decrease ini chromium levels with vetiver plants was 3,78 mg/L on average. The highest removal efficiency (RE) value of 76.64% occured in the adsorption and phytoremediation experiments using vetiver plants and a mixture of fly ash and gravel media a ratio (1:1:1) with each weight of 100 g (5% w/v).

Currently global warming has become an international issue. One of the biggest contributors to global warming is carbon dioxide (CO2). CO2 gas is one of the most prominent gases of greenhouse gases or greenhouse gases in the atmosphere and has an important role in the Earth's climate. Increased CO2 contributes more than 50% to the effects of global warming. Various methods and measuring instruments of CO2 concentration developed from optical sensors to measuring CO2 directly from space using satellites. Atmosphere Infrared Sounder (AIRS) is one of NASA's six (6) instances launched on May 4, 2002 installed on the AQUA satellite. This instrument uses sounding technology that determines the vertical profile of CO2 from space. This instrument supports climate-related research and also in improving weather forecasts. AIRS data can be obtained online from the Giovanni Website at http://giovanni.gsfc.nasa.gov. Giovani is an application provided by NASA to make it easier to acquire, visualize, and analyze remote sensing data with ASCII data facilities that can be downloaded directly. The purpose of this research is to conduct CO2 analysis in Indonesia online using Giovanni Website year 2013-2016. Rendering data online shows the CO2 fluctuated every month, but yearly data shows the CO2 increased signifantly and the higest value in 2016, its reach 4.039 ppm. The results of CO2 analysis is expected to assist in the process of prevention or reduction of CO2 emissions in the air as one of the activities of environmental conservation.

The port area is a diverse business district, both industry and other activities. Even though it is positioned far from residential areas, the impact of its activities indirectly still reaches the surrounding community. The environmental conditions of the port area need to be controlled routinely so that their management does not violate applicable regulations. Environmental management is needed so that risks arising from all activities can be controlled. Panjang Port as one of the well-developed fuel storage terminals as part of the Pelindo II region. This study has been designed to assess air quality and seawater quality around Panjang Port, Bandar Lampung, Indonesia. Several air quality parameters and marine water quality parameters were monitored from 2011 to 2013. The air quality sampling conducted in the fuel storage tank area and chemicals as well as supporting facilities. The air quality parameters are SO2, NO2, O3, CO, H2S, and dust. The results of data analysis showed several air quality parameters such as SO2, NO2, O3, dust, H2S, and NH3 are below the threshold of minimum quality standard. Only the CO parameter tends to increase semester to semester. The seawater quality parameters include physical, chemical, and biological quality. Almost the physical quality parameters are below the quality standard, thus the chemical quality too, except the pH and TSS tends to higher than a quality standard. In general, these studies on air quality and seawater quality at the Panjang Port have been carried out well and the results show that the environmental conditions for the Panjang Port area are still quite good, only it is recommended to add a green area around the site.