in this work, all-solid-state potentiometric pvc membrane sensor was introduced for fast andsimple monitoring of mercury ions in waste water samples. the all solid sate electrode is made based on aconductive composite of graphite, reduced graphene oxide, epoxy resin on a copper wire. a thin layer pvcmembrane is then coated on the surface of the new conducting transducer. pvc membrane is compose...

background and purpose: it is extremely important to recognize the qualitative and quantitative characteristics of this type of waste before any planning on them due to the lack of the prepared program in the field of household hazardous waste (hhw) management in the country. this research has been done in babol, iran, in order to achieve this important goal. materials and methods: the cross-se...

transfer-transport of the waste is one of key functional elements in solid waste management from technical and financial viewpoint. unfortunately very few reach activities has been conducted in this field regarding local characteristic of phenomenon which urges undertaking local surveys and research projects. tehran organization of waste recycling and composting has decided to investigate diffe...

abstract background solid pseudo-papillary tumor of the pancreas (sptp) is a rare disease with a low malignant potential. though it shows low malignant potential 10% to 15% of the cases show aggressive behavior with metastatic involvement of the liver. the symptoms include abdominal discomfort and abdominal pain. it is very rare in early years of age. this is the case of a 10 year old girl with...

background: production of solid waste is the result of the human’s different activities that today has changed a lot in comparison to the past due to the changing life styles and pervasive expansion. in isfahan province lots of wastes are produced daily. due to the importance of the waste and its recycling, the purpose is determining the production scopes of different wastes in order to find a ...

conclusions the produced compost in this study was mature and ready for use as an agricultural substrate or soil conditioner after 80 days of composting. results the results showed that the c/n ratio decreased during the composting process (reached to 15.6) due to the loss of carbon and the increase in nitrogen content per unit material; also, the nh4+/no3 ratio decreased with increase in the t...

high solid content poly (styrene-co-butyl acrylate) latex ( with 20% and 40% solid content) including high amounts of cloisite 30b (7 wt% and 10 wt%) were kinetically investigated. gravimetric method via measuring the rate of polymerization, number of particles and average number of radicals per particle was used. results showed that by increasing the solid content; the average diameter of poly...

The current study aims to analyze waste characteristics and management practices of the hotel industry in Hoi An, a tourism city in the center of Vietnam. Solid wastes from 120 hotels were sampled, the face-to-face interviews were conducted, and statistical methods were carried out to analyze the data. The results showed that the mean of waste generation rate of the hotels was 2.28 kg/guest/day...

Background: Management of solid waste is a set of regular and coherent acts on production control, storage and collection, handling, processing and disposal of solid waste. These activities should be in accordance with best conditions of public health, economy, and protection of industries, aesthetical and other aspects of environmental and public requirements. People cooperation in solid waste...