Abstract: A process for treating coking wastewater contains the steps of passing the coking wastewater in such an order through coagulation, particles removal, and ion-exchange resin.

Abstract: Variants of an immunoglobulin variable domain, said immunoglobulin variable domain comprising (A) at least one CDR region and (B) framework regions flanking said CDR, said variant comprising: (a) said CDR region havind added or substituted therein at least one binding sequence and (b) said flanking framework regions, wherein said binding sequence is heterologous to said CDR and is a binding sequence from a binding site of a binding pair, and wherein said binding sequence is a receptor-binding portion of angiogenin. Additionally, amino acid residues in the flanking and/or non-flanking framework regions may have been deleted, substituted or inserted. Also claimed are molecules comprising said variants. Said molecules may be immunoglobulins. Nucleic acids encoding said variants, and cells and recombinant non-human hosts containing said nucleic acids. Pharmaceutical compositions comprising an effective amount of said variants.