Scaling Control Articles & Analysis: Older
8 articles found
Automatic Batching System The machine adopts computer scales for automatic control, and uses pneumatic valves to control the main material warehouse for quantitative feeding. ...
There are two main reasons: one is that the structure of the pulps is unsound and it is difficult to form large-scale production, which makes it difficult to adjust the structure of the Chinese paper-making industry.The concentration is low, there are too many small paper mills, and the production process is backward. More: lack of economies of scale, inadequate ...
In the world of forestry, bamboo doesn’t always get the credit it deserves. Dismissed as a weed or marginalized in traditional forest management, bamboo could actually play an important role in forest and landscape restoration. With adequate attention, investment, and the right standards in place, it could become a major renewable and sustainable crop—if we can update our outmoded ...
CAFOs (Confined Animal Feeding Operations) face struvite in their manure holding ponds and manure lagoons, as well as their recirculation systems. On a dairy farm in Neb. that operated with 15,000 milking cows, they were generating 500,000 gal per day of wastewater laden with manure. Over the summer, they noticed a reduction in their pumping capacity because the first lagoon was filling faster ...
Calcium also blocks irrigation systems and boilers in heated greenhouses, which become scaled-up resulting in frequent maintenance and increasing fuel costs. ...
Batch studies carried out at varying pH, metal concentrations, temperature, particle size, and contact times indicate 75% removal of Zn2+, at pH 8 in 2.5 h for the concentration range 30-300 mgL−1. The sorption data fits to both the Freundlich and Langmuir isotherm models. Intraparticle diffusion constant and ΔG have been calculated. Column studies using sequential bed column at varying particle ...
This paper reports the vermicomposting of Solid Textile Mill Sludge (STMS) spiked with Cow Dung (CD) and Horse Dung (HD) in a six-month pilot-scale experiment employing Eisenia foetida. Growth and fecundity of Eisenia foetida were significantly affected by temperature variations. The lesser number of cocoons and hatchlings were produced in pilot scale experiments ...
We examined the impact of soil stress (low water and nutrient availabilities) and two keystone insect herbivores on pinyon pine (Pinus edulis) needle litterfall. We compared trees growing on two distinct soil types: volcanic cinders, which exhibit pronounced water and nutrient limitation, and sandy-loam soils, which have higher water-storage capacity and nutrient availability. Using two long-term ...