Identification Soybean Processed Waste Environmental Impact and Management Alternatives (Case Study City of Jakarta Selatan)

Processed soybeans such as tempeh and tofu are some of the foods that the people of Indonesia favour. The Tempe and Tofu processing factory produce tofu with the essential soybean ingredients as much as 17 kg every day. The tofu production process starts from soybean immersion, grinding, boiling, filtering, compaction, moulding, cutting, to frying tofu. Production activities from the tofu industry will certainly produce solid and wastewater. These wastes can have a negative impact on the environment. Therefore, the waste must be managed and treated correctly to create an environmentally friendly industry and improve environmental quality. Tofu industry waste management and treatment can be done by identifying the generation of waste that is a priority to be treated and choosing waste treatment technology. There are three alternatives for wastewater treatment from the tofu industry: the chlorine in wastewater, ponds by forming biofilms using biofilter media, and Trickling Filters.

Enhancing the Engineering Properties of Subgrade Materials Using Processed Waste: A Review

Subgrade materials refer to the original ground underneath a road pavement, when these materials are made up of expansive soil it is referred to as expansive subgrade. Sometimes, these materials do not have sufficient capacity to support the weight of the road pavement and traffic load, which means they require some form of modification and re-engineering to enhance their load capacity. Chemical modification techniques using traditional stabilisers (such as cement and lime) have proved to be an effective means of subgrade stabilisation. However, high costs and environmental concerns associated with the use and production of these additives have highlighted the need for more sustainable and environmentally friendly substitutes. This study reviews the use of industrial by-products and other waste materials used for subgrade stabilisation, focusing on the sustainability of using processed wastes and how they alter the engineering properties of weak subgrade, compared to the use of cement and also reviews the availability of processed waste materials in quantities sufficient to meet the current demand for subgrade stabilisation. The findings illustrate that, processed waste is less expensive and has better sustainability credentials compared to cement. Moreover, processed wastes are available in sufficient quantities to meet existing demands for subgrade stabilisation. Therefore, it is recommended that the use of processed wastes should be promoted and utilised to improve and enhance the geotechnical properties of weak subgrade materials where possible.

Pemberdayaan Masyarakat Melalui Pengelolaan Limbah di Anak Sungai Citarum

AbstrakSampah merupakan material sisa yang tidak di inginkan setelah berakhirnya suatu proses. Sampah didefinisikan oleh manusia menurut derajat keterpakaiannya, dalam proses-proses alam sebenarnya tidak ada konsep sampah, yang ada hanya produk-produk yang dihasilkan setelah dan selama proses alam tersebut berlangsung. Akan tetapi dalam kehidupan manusia didefinisikan konsep lingkungan maka sampah dapat dibagi menurut jenis-jenisnya. Sampah yang selama ini cenderung menjadi suatu yang dipersoalkan karena tidak adanya nilai guna didalamnya sehingga tidak heran jika saat ini kita sering menjumpai barang-barang bernilai ekonomi yang dibuat dari bahan olahan sampah. Bank sampah merupakan suatu lembaga yang berfungsi menampung sampah yang diberikan oleh masyarakat yang nantinya akan diolah kembali untuk dijadikan barang-barang yang memiliki nilai ekonomi kembali dimasyarakat, sebagai imbal baliknya sampah-sampah yang dikumpulkan masyarakat sangat membantu dalam program kebersihan lingkungan. Dengan adanya kepedulian dari tokoh masyarakat dalam melestarikan lingkungan melalui pengelolaan sampah, juga sebagai upaya mengurangi polusi sampah anorganik dan gulma yang berupa eceng gondok yang tumbuh di sekitar sungai Citarum ada juga sebagai upaya melatih hidup sehat dan bersih bagi masyarakat. Sehingga setiap sampah yang dihasilkan masyarakat setiap hari tidak terbuang percuma atau bahkan sampah yang tadinya menjadi hal yang sangat diabaikan nantinya akan menjadi barang yang diperebutkan karena memiliki nilai ekonomi setelah diolah sedemikian rupa menjadi berbagai jenis kerajinan tangan harga jualnya sangat tinggi. Kata Kunci : Pemberdayaan, Pengelolaan LimbahAbstractWaste is a waste material that is not in want after the end of a process. Waste is defined by humans according to degrees of exposure, in natural processes there is no concept of waste, only the products produced after and during the natural process take place. But because in human life defined the concept of the environment then the garbage can be divided by the types. Garbage which has tended to become an issue because there is no use value in it even tends to be interpreted as goods whose existence so do not be surprised if today we often encounter goods of economic value made from processed waste materials. Bank waste is an institution that serves to accommodate the waste provided by the community which will be processed back to be used goods that have economic value back in the community, in return the garbage collected by the community is very helpful in the program of environmental hygiene. With the awareness of community leaders in preserving the environment through waste management, as well as efforts to reduce the pollution of inorganic waste and weeds in the form of water hyacinth that grows around the river Citarum there is also an effort to train healthy and clean life for the community. So every garbage generated by the community every day is not wasted or even garbage that had become a very neglected thing will be a contested item because it has economic value after being processed in such a way to be various types of handicrafts selling price is very high. Keywords: Empowerment, Waste Management

Microbiological Processing of Livestock Waste into Concentrated Organic Fertilizer

The results of an experiment on the processing of manure by biofermentation using microbial compositions are presented. The compositions contained bacteria that produce enzymes and biologically active substances that are involved in the decomposition of components of organogenic waste, inhibit the development of pathogenic microbiota, preserve the nutrients of the composted mixture and provide fixation of atmospheric nitrogen. It was shown that treatment of manure with active bacterial strains led to a decrease in the number of microscopic fungi and pathogenic microbiota by 1–2 orders already on the 5th day, stimulation of the decomposition of organic matter, an increase in the total nitrogen content, and a decrease in the phytotoxicity of the processed waste.