Nazih Kassem's research while affiliated with Cornell University and other places

Publications (6)

Article
Full-text available
Sustaining, maintaining and upgrading the electricity grid, while meeting decarbonization goals is a challenge facing policy-makers, regulators, grid operators and investors. Simultaneously meeting demands for future capacity, retiring older inefficient technologies and addressing externalities from energy production and use requires more diverse a...
Article
Hydrothermal carbonization (HTC) of raw and anaerobically digested (AD) manure with either water or whey was studied, with the goal of recovering energy and nutrients. Specifically, the impacts of HTC reaction temperature (180–240 °C), solid feedstock, and type of liquid on hydrochar quality and aqueous phase properties were tested. Of the hydrocha...
Article
Many governments and institutions are advocating for higher renewable energy deployment to lower their carbon footprint and mitigate the effects of climate change. Cornell University instituted the “climate action plan” to achieve carbon neutrality, of which geothermal heat extracted from deep rocks (Earth source heat) is a critical component. This...
Article
This study highlights the potential of combining energy and dairy waste management systems to maximize resource recovery and reduce dairy farming environmental impacts. A combined anaerobic digestion, hydrothermal liquefaction, and a biomethanation process system was used to generate Renewable Natural Gas (RNG). The biomethanation step is part of a...
Article
There is increasing global interest and policies being enacted to lower greenhouse gas emissions, especially from the agricultural sector. In the U.S. for example, states with large dairy operations may combine proven manure valorization technologies, such as anaerobic digestion and hydrothermal liquefaction. Sustainable manure treatment would incr...

Citations

... As per an estimate, the cost of transporting FLW to the production site by road using a truck was calculated at around 0.14 USD/tkm [107]. Another study estimated a price expense of 100 USD/hour for liquid waste transportation and 2.5 USD/km for the transportation of solid waste [108]. Using a base case of 52 operational weeks in a year and 12 trips for the transportation of liquid waste and with each trip of 4 h (average), it would amount to a cost of 0.25 million USD/year. ...
... The fate of the nutrients (N, P, and K) is interesting considering the potential use of hydrochar or process water as a soil amendment (Suarez et al., 2023) or liquid fertilizer (Belete et al., 2021), respectively. Fig. 1 shows the fate of nutrients in the HTC and co-HTC assays. ...
... 1-10 In terms of electricity generation, the input of most of the electrical power generation plants comes from the fossil fuel. 11 However, in the past two decades, energy generation has been commenced commercially from renewable resources due to technological advances. Since renewable energy is clean, safe, and reliable, the interest has been shifted to generate electricity from renewable energy to reduce the greenhouse gases. ...
... The treatment plants, mainly generated incomes in the from of electricity and/or renewable natural gas and nutrient-rich solid fraction (De Vrieze et al., 2019). The CAPEX i.e., the capital expenditure or expenses is obtained from the manufacturers and it depends on the size of the farm and the quantities of LSM that need to be treated (Kassem et al., 2020). The application suitability for a specific treatment system like solid-liquid separation is based on the N-surplus generated and whether it can be effectively managed by relocation, as discussed above. ...
... We identified the largest sources of FW in NYS and mapped them using geographic coordinates using the New York State Pollution Prevention Institute Organic Resource Locator database 29 as described previously. 30 Supermarkets, restaurants, and universities were grouped as a single category (SRU) because of their similar waste compositions and concentrated urban locations. Brewery waste (brewers' spent grains: BSG) and dairy waste (dairy cheese whey: DCW) have localized production and uniform composition. ...