Question

What do you
Wapte 3 field where computers are used with
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Answer 1

Answer:

Explanation:

The light hydrocarbons consisted of 15 mol% each of methanol, acetone, ethylene glycol,

benzene, carbon tetrachloride, and dichloroethane, and 10 mol% monoethanolamine. TRIMeSOL

is a petroleum-based commercial cutting fluid with both chlorinated and sulfonated long-chain

hydrocarbons. The above "average waste" contains a total of about 19 wt% chlorine and

0.7 wt% sulfur.

Monoethanolamine is included in the waste because it is a constituent of DOE wastes, and may

have an effect on dehalogenation processes. Amines have been shown to be acceptable in SCWO

processes, forming N, rather than NO,

Heat and material balances were calculated for various processes. For dechlorination reactions,

equilibrium was assumed. The heat and material balance provided a basis for operating costs and also

for rough-sizing equipment, which in turn provided a basis for equipment cost estimates. The capacity

used for the pretreatment process was assumed to be 500 gpd of organic liquids, based on a

5,000 gpd, 10% waste SCWO unit?

The evaluation consists of a series of comparisons. First, four processes of gas-phase

dechlorination/desulfurization were compared. Based on material and energy balances for these four

processes, differences in operating and capital costs were estimated. These processes apply only to

the light hydrocarbons and water portion of the waste. The evaluation used weighting factors to

combine measurable and intangible criteria into a total score for each process.

Another comparison was made of gas-phase reactions with three solid bases. Although these

processes have been primarily developed to treat PCB-contaminated soil, the chemistry of

dechlorination reaction is similar regardless of the state of the feed.

A third comparison was made of processes that could be used for dehalogenation of nonvolatile

chlorinated waste. Six processes were selected for this evaluation. Conceivably. any hydrogenation

or strong-base process, treating vapor could be combined with any liquid phase process to form a

complete system for treating liquid waste.