The traditional market, everyday produces organic waste that could potentially give rise to pollution and disruption of human life. One of utilization that can be developed is to turn it into a liquid organic fertilizer and used in the cultivation of feed. Setaria splendida is a plant feed the forage can be given for all types of livestock. The research was done to get the best dosage of liquid organic fertilizer from traditional market waste. The treatment used is a mixture of liquid organic fertilizer for traditional market waste with water in comparison of 0:0, 1:1, 1:2 and 1:3. A Complete Random Design was used. Each treatment was repeated four times on a swath of size 1 x 1 square meters and data used the fourth defoliation age harvest every defoliation is 35 days. The parameters investigated is fresh forage production and carrying capacity for large and small cattle animals. The results showed the average production levels the range of 0.96375 kg -1.083 kg per square meter, so it can be to maintain 13.38 -15.04 head of cows or 53,52 -60,16 head of goats per acre per year. The best treatment is a liquid organic fertilizer mixed with water comparison at 1:2.
Coal mining of PT. Mifa Brothers in Aceh Barat produces liquid waste containing hazardous heavy metals. Research conducted at PT. Mifa Brothers located in Sumber Batu Village, Meureubo Subdistrict, West Aceh Regency, Aceh Province. The coal mining activities by the PT. Mifa Brothers used open-cast mining systems with open method. From the resulting liquid waste, the PT. Mifa Brothers made two ponds used as liquid waste treatment. Efficiency of Sewage Treatment Plant (STP or IPAL) conducted by the industry, can be known through the analysis of he avy metals content (Fe, Mn and Cd), cyanide and nitrite on inlet and outlet of liquid waste shelter. This analysis was determined using the atomic absorption Spectropotemer (SSA) for metal Fe, Mn and Cd, while CN-and NO2-analysis-using UV-Vis spectrophotometry methods. Test result of heavy metal ions of iron ion, manganese ions, cadmium ions, nitrite, and cyanide on each inlet is 8.24; 0.223; < 0.01; 0.034 mg/L and 0.321 on each outlet are 3.03; 0.189; < 0.01 mg/L; 0,016 and undetectable for cyanide. Sewage treatment at PT. Mifa Brothers using Dolomite method as adsorbent has not been efficient and efficient in the reduction of pollutant levels. Keywords : SSA, UV-Vis spectrophotometry, Inlet and outlet, Fe, Mn, Cd,NO2, CN-
Pasir Kidul Village is one of the industrial villages in West Purwokerto District, Banyumas. Wood industrial waste (pencil factory), namely wood sawdust and wood chips accumulate and disturb the surrounding environment. One of the uses of this waste is the raw material for white mushroom baglog (Pleurotus ostreatus). This Community Partnership Program (PKM) aims to utilize wood sawdust for the cultivation of white oyster mushroom (Pleurotus ostreatus) in community groups in Pasir Kidul Village, West Purwokerto District, Banyumas Regency. This PKM is held for 5 months, from August to December 2018. There are 19 community groups in this community partnership program, with the target that after counseling, training and assistance in the application of "white oyster mushroom cultivation" technology can be applied to 80% of the program participants. The extension stages were training on how to make lemur and baglog for white oyster mushroom cultivation, training on planting seeds and maintaining white oyster mushroom cultivation media, counseling on the influence of types of growing media on white oyster mushroom production, and counseling on environmental factors as determinants of the success of white oyster mushroom cultivation. Some of the problems found by farmers who have carried out cultivation are Baglog sterilization and baglog rot. The results of the community partnership program show that there is an optimization of the utilization of wood sawdust waste which is abundant in the village, by processing wood sawdust into a growing medium for white oyster mushrooms (Pleurotus ostreatus) so that it has a higher useful value and selling value. Pasir Kidul adalah Kelurahan di Kecamatan Purwokerto Barat, Kabupaten Banyumas, Provinsi Jawa Tengah, Indonesia. Desa Pasir Kidul merupakan salah satu desa industri dengan terdapatnya industri pengolahan kayu (pabrik pensil) yang berdampak langsung dengan melimpahnya limbah padat berupa serbuk gergaji kayu dan serpihan kayu yang terbuang menumpuk di suatu lokasi tertentu yang dapat mengganggu kondisi lingkungan sekitar. Selama ini, serbuk gergaji kayu dibiarkan membusuk, ditumpuk dan dibakar yang berdampak negatif terhadap lingkungan sehingga penanggulangannya perlu dipikirkan. Salah satu upaya untuk membantu mengatasi permasalahan menumpuknya serbuk gergaji kayu di Desa Pasir Kidul adalah pemanfaatan serbuk gergaji kayu untuk budidaya jamur tiram putih (Pleurotus ostreatus) di kelompok masyarakat Desa Pasir Kidul Kecamatan Purwokerto Barat Kabupaten Banyumas. Upaya daur ulang serbuk gergaji kayu yaitu dengan memanfaatkan serbuk gergaji kayu tersebut untuk media tanam jamur tiram putih (Pleurotus ostreatus). Menurut Rachman dan Malik (2011), jika dilihat dari mata rantai industri pengolahan kayu, maka dalam industri penggergajian terjadi proses perubahan kayu pertama kali yaitu kayu dalam bentuk dolok menjadi kayu gergajian (sawn timber) atau disebut juga kayu konversi berupa papan, balok, tiang dan sortimen lainnya.
This study aims to determine the macrozoobenthic community, the effect of rock mining on the macrozoobenthic community, and the water quality of the Logawa River. The research method used is purposive random sampling technique at 5 stations with 3 replications. The results showed that species richness, individual abundance and diversity were low at several stations because not all macrozoobenthos had a tolerance value for living in waters where sediment conditions had been affected by rock mining. Meanwhile, the dominance index value of the high category at station 3 was due to the effects of rock mining which caused macrozoobenthos who were intolerant of rock mining to move, so that only macrozoobenthos that were resistant to such conditions survived and dominated the area. Water quality for macrozoobenthos is still quite good based on the measurement results.
The city of Purwokerto is crossed by several large rivers, this research examines several tributaries of a large river. Some tributaries that pass through the city of Purwokerto are the Raden River, the Caban River, the Jurig River and the Luhur River. Tributaries have the potential to influence water quality. This study aimed to analyze the quantity of coliform bacteria as an indicator of water pollution in several tributaries in Purwokerto City, Banyumas Regency. Microbiological tests were carried out by calculating the total coliform quantity and fecal coliform using the Most Probable Number (MPN) test. Total coliform and fecal coliform can be used as a reference indicator of water quality in the presence of water pollution. The laboratory test results for the quantity of coliform bacteria showed in several tributaries in Purwokerto City, Banyumas Regency, very high in total coliform or fecal coliform, exceeding the water quality standard.
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