In last one decade, numerous researches have been performed on the Black Soldier Fly (BSF) larvae to establish the optimal breeding condition in contradiction of the computational temperature, wide sort of substrates and sub optimized feeding ratio. Even though the considerable number of methods has been already established and supervised, there have been a technical lagging always been predominantly in the form of egg hatching rate, moisture tolerance, drainage and rearing requirements to categorize the obtainable alternatives. In order to inculcate the reimbursements of the existing technology and fulfil the knowledge gaps pertaining, in this paper, we propose a monitoring based real time hatching system which comprises the technicality and precious management skills. This review emphases a comprehensive nutrition technique for BSF larvae by means of different fodder acclaim abilities in association with the adaptability of sewage water and accentuate the change in the behavioral characteristics of the adult as well as on larvae stage, which can open a new economic window in sustainable waste management technique and will be capable of addressing multi-dimensional solution in the form of green and novel alternative.

Steelmaking is a water-intensive process. The mean water intake against each ton of steel manufactured is ascertained as between 2 and 20 m3. Primarily, the stated requirement is in the form of make-up water to compensate for evaporation and mechanical losses and does not contribute to wastewater generation. Conversely, unit operations, such as rolling, continuous casting, pickling, etc., generate highly complex wastewater rich in polycyclic aromatic hydrocarbons (PAH), cyanide, ammonia, non-consumed acids, benzene, toluene, xylene, oil, grease, etc. Further, the conjugative wastewater contains a high concentration of metallic oxides, toxic elements, oil, nitrogen, and heavy metals such as zinc, nickel, chromium, etc. These contaminants are generally treated and neutralized using physicochemical and membrane-based systems. This also yields hazardous sludge, which is landfilled, thereby incurring an ancillary financial burden. However, sludge can be a frugal source of extracting multi-dimensional benefits. The present review investigated and identified the most water-intensive and wastewater/sludge-contributing unit operations and proposed a preferential combination of treatments to balance efficacy and economy. Further, the various global practices for sludge recycling and management documented in the existing literature are summarized and ranked with the help of the analytic hierarchy process (AHP). The findings revealed concrete making and nutrient recovery as the most- and least-preferred recycling alternatives.